leaf
Longman Dictionary of Contemporary English 5++LDOCE 5++leaf1 /liːf/ ●●● S2 W2 noun (plural leaves /liːvz/) 1 plant 植物 [countable]HBP one of the flat green parts of a plant that are joined to its stem or branches 叶，叶子 a flowering bush with large shiny leaves 叶子大而油亮的开花灌木leaf of Add a few leaves of fresh basil to the salad. 在色拉中加入一些新鲜的罗勒叶。be in leaf/come into leaf (=have or start growing leaves, at a particular time of year) 有叶子/开始长出叶子 The forest was just coming into leaf. 森林里的树木刚开始长叶。 →5 see picture at 见图 tree2 take a leaf out of somebody’s book IMITATEto copy the way someone else behaves because you want to be like them or be as successful as they are 学某人的样，以某人为榜样 They are committing $3m to research. We could take a leaf out of their book. 他们要投入300万美元搞研究，我们也可以仿效他们。3 turn over a new leaf BEHAVEto change the way you behave and become a better person 翻开新的一页；改过自新；重新做人 I see fatherhood as a chance to turn over a new leaf. 我把当父亲看作翻开生命新一页的一个机会。4 page 页 [countable] formalTCN a page of a book 纸页，书页 He slipped the letter between the leaves of his notebook. 他把信悄悄塞进他的笔记本里。 → loose-leaf, overleaf5. part of table 桌子的一部分 [countable]DCJ a part of the top of a table that can be taken out to make the table smaller 活动桌板 → shake like a leaf at shake1(2)n COLLOCATIONSverbsthe leaves turn red/brown etc (=become red, brown etc)The maple leaves had turned a fiery red.the leaves fallAll the leaves had fallen off the tree.a tree loses/sheds its leaves (=the leaves come off the tree)Most trees shed their leaves in the autumn.sweep (up) the leaves (=tidy away fallen leaves using a brush)Jack was sweeping leaves in the back garden. ADJECTIVES/NOUN + leaf a green/brown/yellow etc leafthe deep green leaves of the coconut treesa dead leafThe ground beneath the tree was covered in dead leaves.fallen leaves (=that have fallen off the trees)The children were jumping in piles of fallen leaves. autumn leaves (also fall leaves American English) (=leaves that have changed colour or fallen in autumn)I love the colours of the autumn leaves.an oak/vine/spinach etc leaf (=a leaf from a specific plant or tree)Vine leaves stuffed with rice is a typical Greek dish.phrasesbe in leaf especially literary (=have leaves)By this time, most of the trees were in leaf.come into leaf (=start having leaves)The apple tree had finally come into leaf.
Examples from the Corpus
leaf• Experts disagree on the best way of preserving the medicinal strength of its roots and leaves.• Every leaf was picked out in golden radiance.• And did I not, at fifty, put out a whole new crop of leaves myself?• Turn the leaf over and use a sharp knife to cut each of the main veins on the leaf.• When the leaves being to fall, it's time to think about the Section 9's and the Section 10's.• the leaves of a maple tree• The leaves are evergreen or semi-evergreen since they can be heavily defoliated in severe winters.• When the rain passed, the limbs of the wet trees were darker and their leaves were greener.leaf2 verb 1 leaf through something phrasal verb to turn the pages of a book quickly, without reading it properly 匆匆翻阅 SYN skim through She picked up the magazine and leafed through it. 她拿起杂志快速翻阅。→ See Verb tableExamples from the Corpus
leaf• Nigel leafed through a few large-print Agatha Christies but was put off by the noxious inexplicable stains on the pages.• He leafed through a pile of documents until he found a sheet of paper torn from an exercise book.• But just the simple act of leafing through and talking about a book can help.• He leafed through his papers, then, with a glance at Sonny, raised his eyebrows expectantly.• I leaf through the pages again that night.Origin leaf1 Old Englishleaf1 noun →n COLLOCATIONS1leaf2 verbLDOCE OnlineChinese
one of parts green Corpus the flat
See ldoce4395jpg for more
leaf
leaf1 S2 W2 /liːf/ 
noun (plural leaves /liːvz/)
1. PLANT [countable] one of the flat green parts of a plant that are joined to its stem or branches:
a flowering bush with large shiny leaves
leaf of
Add a few leaves of fresh basil to the salad.
be in leaf/come into leaf (=have or start growing leaves, at a particular time of year)
The forest was just coming into leaf.
2. take a leaf out of sb’s book to copy the way someone else behaves because you want to be like them or be as successful as they are:
They are committing $3m to research. We could take a leaf out of their book.
3. turn over a new leaf to change the way you behave and become a better person:
I see fatherhood as a chance to turn over a new leaf.
4. PAGE [countable] formal a page of a book:
He slipped the letter between the leaves of his notebook. ⇨ loose-leaf, overleaf
5. PART OF TABLE [countable] a part of the top of a table that can be taken out to make the table smaller
⇨ shake like a leaf at shake1(2)
■ verbs
▪the leaves turn red/brown etc (=become red, brown etc) The maple leaves had turned a fiery red.
▪the leaves fall All the leaves had fallen off the tree.
▪a tree loses/sheds its leaves (=the leaves come off the tree) Most trees shed their leaves in the autumn.
▪sweep (up) the leaves (=tidy away fallen leaves using a brush) Jack was sweeping leaves in the back garden.
■ ADJECTIVES/NOUN + leaf
▪a green/brown/yellow etc leaf the deep green leaves of the coconut trees
▪a dead leaf The ground beneath the tree was covered in dead leaves.
▪fallen leaves (=that have fallen off the trees) The children were jumping in piles of fallen leaves.
▪autumn leaves (also fall leaves American English) (=leaves that have changed colour or fallen in autumn) I love the colours of the autumn leaves.
▪an oak/vine/spinach etc leaf (=a leaf from a specific plant or tree) Vine leaves stuffed with rice is a typical Greek dish.
■ phrases
▪be in leaf especially literary (=have leaves) By this time, most of the trees were in leaf.
▪come into leaf (=start having leaves) The apple tree had finally come into leaf.
leaf2 verb
leaf through something phrasal verb
to turn the pages of a book quickly, without reading it properly
SYN skim through:
She picked up the magazine and leafed through it.
| I |
noun (plural leaves /liːvz/) Language: Old English
1. PLANT [countable] one of the flat green parts of a plant that are joined to its stem or branches:
leaf of
be in leaf/come into leaf (=have or start growing leaves, at a particular time of year)
2. take a leaf out of sb’s book to copy the way someone else behaves because you want to be like them or be as successful as they are:
3. turn over a new leaf to change the way you behave and become a better person:
4. PAGE [countable] formal a page of a book:
5. PART OF TABLE [countable] a part of the top of a table that can be taken out to make the table smaller
⇨ shake like a leaf at shake1(2)
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■ ADJECTIVES/NOUN + leaf
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| II |
verbleaf through something phrasal verb
to turn the pages of a book quickly, without reading it properly
SYN skim through:
Animals 动物
animals mate/breed/reproduce/feed (on sth) 动物交配／繁育／繁殖／以…为食 fish/amphibians swim/spawn (= lay eggs)鱼／两栖动物游动／产卵 birds fly/migrate/nest/sing 鸟飞翔／迁徙／筑巢／啼叫 insects crawl/fly/bite/sting 昆虫爬／飞／咬／叮 insects/bees/locusts swarm 昆虫／蜜蜂／蝗虫成群地飞来飞去 bees collect/gather nectar/pollen蜜蜂采蜜／花粉 spiders spin/weave a web蜘蛛结网／织网 snakes/lizards shed their skins 蛇／蜥蜴蜕皮 bears/hedgehogs/frogs hibernate 熊／刺猬／青蛙冬眠 insect larvae grow/develop/pupate 昆虫的幼虫生长／发育／化蛹 an egg/a chick/a larva hatches 卵孵化；小鸡出壳；幼虫孵出 attract/find/choose a mate吸引／找到／选择配偶 produce/release eggs/sperm产卵；排卵；产生／释放精子 lay/fertilize/incubate/hatch eggs产卵；使卵受精；孵卵 inhabit a forest/a reef/the coast栖居于森林／礁石／海岸 mark/enter/defend (a) territory标出／进入／保卫领地 stalk/hunt/capture/catch/kill prey悄悄接近／猎杀／捕获／杀死猎物
Plants and fungi 植物和真菌
trees/plants grow/bloom/blossom/flower 树木／植物生长／开花 a seed germinates/sprouts 种子发芽 leaves/buds/roots/shoots appear/develop/form 叶子／花蕾／根茎／幼苗长出来／长大／成形 flower buds swell/open 花蕾含苞欲放／绽放 a fungus grows/spreads/colonizes sth 菌类生长／扩散／长满… pollinate/fertilize a flower/plant给花／植物授粉 produce/release/spread/disperse pollen/seeds/spores长出／传播花粉／种子／孢子 produce/bear fruit结果 develop/grow/form roots/shoots/leaves长出根茎／嫩芽／叶子 provide/supply/absorb/extract/release nutrients提供／吸收／提取／释放营养物 perform/increase/reduce photosynthesis进行／增加／减少光合作用
Bacteria and viruses 细菌和病毒
bacteria/microbes/viruses grow/spread/multiply 细菌／微生物／病毒生长／扩散／繁殖 bacteria/microbes live/thrive in/on sth细菌／微生物在…中存活／大量生长 bacteria/microbes/viruses evolve/colonize sth/cause disease 细菌／微生物／病毒进化／长满…／引发疾病 bacteria break sth down/convert sth (into sth) 细菌（将某物）分解／转化（成某物） a virus enters/invades sth/the body病毒进入／侵入某物／身体 a virus mutates/evolves/replicates (itself) 病毒变异／演化／（自我）复制 be infected with/contaminated with/exposed to a new strain of a virus/drug-resistant bacteria感染上／接触到一种新病毒／抗药性细菌 contain/carry/harbour/ ( especially
harbor bacteria/a virus带有细菌／病毒 kill/destroy/eliminate harmful/deadly bacteria杀灭有害的／致命的细菌
