bound·a·ry /ˈbaʊndəri/ ●●○ noun (plural boundaries)1EDGE[countable] the real or imaginary line that marks the edge of a state, country etc, or the edge of an area of land that belongs to someone 分界线;边界boundary betweenThe Mississippi River forms a natural boundary between Iowa and Illinois. 密西西比河是艾奥瓦州和伊利诺伊州的天然边界。National boundaries are becoming increasingly meaningless in the global economy. 在全球经济中,国界已经变得越来越没有意义。We would need their agreement to build outside the city boundary. 我们在市界以外的地方建房需要他们批准。The stream curves round to mark the boundary of his property. 小河打了个弯,为他这块地划出了边界。Anything that crosses the boundary of a black hole cannot get back. 任何物质只要跨越黑洞的界线就再也无法出来。We walked through the churchyard towards the boundary wall. 我们穿过教堂墓地,向院墙走去。The property’s boundary line is 25 feet from the back of the house. 这块地产的边界线在屋后25英尺的地方。boundary disputes between neighbouring countries 邻国之间的边界争端► see thesaurus at border2LIMIT[countable usually plural]LIMIT the limit of what is acceptable or thought to be possible 限度,界限,极限boundary ofthe boundaries of human knowledge 人类知识的极限within/beyond the boundaries of somethingwithin the boundaries of the law 在法律许可的范围内push back the boundaries (of something) (=to make a new discovery, work of art etc that is very different from what people have known before, and that changes the way they think) 扩大(某事物的)范围art that pushes back the boundaries 突破界限的艺术3BETWEEN FEELINGS/QUALITIES ETC[countable]LIMIT the point at which one feeling, idea, quality etc stops and another starts 〔不同情感、思想、品质等之间的〕分野,分界线boundary of/betweenthe boundaries between work and play 工作和娱乐之间的界线the blurring of the boundaries between high and popular culture 高雅文化和通俗文化之间界线的模糊4.CRICKET[countable]DSC the outer limit of the playing area in cricket, or a shot that sends the ball across this limit for extra points 〔板球场的〕边界线;越过边界线的加分球nCOLLOCATIONSADJECTIVES/NOUN + boundary national/state boundaries (=boundaries between countries or states)Big companies usually aim to expand outside national boundaries.international boundaries (=boundaries between countries all over the world)About 10% of hazardous waste is shipped across international boundaries.a city boundaryThe new housing estates stretch beyond the old city boundaries.the northern/southern etc boundary (=of an area or city)the southern boundary of San Franciscoa geographical boundaryToday satellite communications cross all geographical boundaries.a political boundaryReforms could extend the geographical and political boundaries of the EU.a natural boundary (=a river, line of mountains etc that form a boundary)Here, the Andes form a natural boundary between Argentina and Chile.verbsmark/form a boundaryThe river Jordan marks the boundary between Israel and Jordan.cross/transcend a boundaryThese are practical problems that cross political boundaries.boundary + NOUNa boundary wall/fenceThe boundary wall was about twenty foot high.a boundary lineThere was some disagreement about the exact position of the boundary line.a boundary dispute (=a disagreement about where a boundary should be, for example between neighbours)We had to hire a lawyer to sort out the boundary dispute.
1. [countable] the real or imaginary line that marks the edge of a state, country etc, or the edge of an area of land that belongs to someone boundary between The Mississippi River forms a natural boundary between Iowa and Illinois. National boundaries are becoming increasingly meaningless in the global economy. We would need their agreement to build outside the city boundary. The stream curves round to mark the boundary of his property. Anything that crosses the boundary of a black hole cannot get back. We walked through the churchyard towards the boundary wall. The property’s boundary line is 25 feet from the back of the house. boundary disputes between neighbouring countries 2. [countable usually plural] the limit of what is acceptable or thought to be possible boundary of the boundaries of human knowledge within/beyond the boundaries of something within the boundaries of the law push back the boundaries (of something)(=to make a new discovery, work of art etc that is very different from what people have known before, and that changes the way they think) art that pushes back the boundaries 3. [countable] the point at which one feeling, idea, quality etc stops and another starts boundary of/between the boundaries between work and play the blurring of the boundaries between high and popular culture 4. [countable] the outer limit of the playing area in cricket, or a shot that sends the ball across this limit for extra points
COLLOCATIONS
■ ADJECTIVES/NOUN + boundary ▪ national/state boundaries(=boundaries between countries or states)Big companies usually aim to expand outside national boundaries. ▪ international boundaries(=boundaries between countries all over the world)About 10% of hazardous waste is shipped across international boundaries. ▪ a city boundaryThe new housing estates stretch beyond the old city boundaries. ▪ the northern/southern etc boundary(=of an area or city)the southern boundary of San Francisco ▪ a geographical boundaryToday satellite communications cross all geographical boundaries. ▪ a political boundaryReforms could extend the geographical and political boundaries of the EU. ▪ a natural boundary(=a river, line of mountains etc that form a boundary)Here, the Andes form a natural boundary between Argentina and Chile. ■ verbs ▪ mark/form a boundaryThe river Jordan marks the boundary between Israel and Jordan. ▪ cross/transcend a boundaryThese are practical problems that cross political boundaries. ■ boundary + NOUN ▪ a boundary wall/fenceThe boundary wall was about twenty foot high. ▪ a boundary lineThere was some disagreement about the exact position of the boundary line. ▪ a boundary dispute(=a disagreement about where a boundary should be, for example between neighbours)We had to hire a lawyer to sort out the boundary dispute.
THESAURUS
▪ border the official line that separates two countries, or the area close to this line: The town lies on the border between Chile and Argentina. | Strasbourg is very close to the German border. | border guards ▪ frontierespecially British English the border: They crossed the Libyan frontier into Egypt. ▪ line the official line that separates states and counties in the US: His family lived across the state line in West Virginia. ▪ boundary the line that marks the edge of an area of land that someone owns, or one of the parts of a country: The fence marks the boundary between the two properties. | The Mississippi River forms the boundary between Tennessee and Arkansas. | A road runs along the western boundary of the site.
These are all words for a line that marks the edge of sth and separates it from other areas or things.以上各词均指边界、分界线。
borderthe line that separates two countries or areas; the land near this line指国界、边界、边疆、边界地区:◆a national park on the border between Kenya and Tanzania位于肯尼亚和坦桑尼亚边界的国家公园
boundarya line that marks the edges of an area of land and separates it from other areas指边界、界限、分界线:◆The fence marked the boundary between my property and hers.那道篱笆曾是我和她的房产之间的地界。
frontier(BrE) the line that separates two countries or areas; the land near this line指国界、边界、边疆、边境:◆The river formed the frontier between the land of the Saxons and that of the Danes.这条河曾是撒克逊人与古斯堪的纳维亚人土地的分界线。
which word?词语辨析
The point where you cross from one country to another is usually called the border. In British English it can also be called the frontier, but this is often in a context of wildness, danger and uncertainty.国界线通常叫 border;英式英语亦可叫 frontier,但 frontier 常与荒芜、危险和不确定联系在一起:◆The rebels control the frontier and the surrounding area.叛乱分子控制了边疆地区。The line on a map that shows the border of a country can be called the boundary but 'boundary' is not used when you cross from one country to another.地图上标示的国界线可叫 boundary,但穿越国界不用 boundary:◆After the war the national boundaries were redrawn.战后重新划定了国界。◆Thousands of immigrants cross the boundary every day.Boundary can also be a physical line between two places, for example between property belonging to two different people, marked by a fence or wall. * boundary 亦可指两地间的分界线,如用篱笆或墙隔开的分属于不同的两个人的土地分界线:◆the boundary fence/wall between the properties分隔两所房子的篱笆/墙