rock-hard
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌrock-ˈhard adjective 1 extremely hard 非常坚硬的 The bread was stale and rock-hard. 这个面包不新鲜，硬邦邦的。2. British EnglishSTRONG PERSON strong and not afraid of anyone – used humorously 坚强的；谁也不怕的〔幽默用法〕
Examples from the Corpus
rock-hard• Her father, under a soft, plump, vague appearance, was rock-hard.• It was rock-hard and dry as a biscuit.• Granny Weatherwax lay in it, her dress torn, her hair uncoiling from its rock-hard bun.• The result, taut abs, a rock-hard butt and twanging musculature, was still not enough to save her marriage.• As he stuck a sceptical thumb into a tub of rock-hard Camembert, he knew he was facing a first-class mess.• Tekla, the dark-eyed young Gentile woman with red cheeks, brought us tea and rock-hard kichel.• Many had protective foils like thorns and spines, with much of the plant tissue containing rock-hard phytoliths or tough fibrous cellulose.ˌrock-ˈhard adjectiveChineseSyllable
Corpus extremely hard
rock-hard
ˌrock-ˈhard
adjective
1. extremely hard:
The bread was stale and rock-hard.
2. British English strong and not afraid of anyone – used humorously
ˌrock-ˈhard
adjective1. extremely hard:
2. British English strong and not afraid of anyone – used humorously