牛津高阶英汉双解词典-txt
明即起. the crack of `doom the end of the world 世界末日: (fig 比喻) To get a bus here you have to wait till the crack of doom, ie an extremely long time. 在这儿真要等到世界末日（很久很久以後）才能有公共汽车. a fair crack of the whip => fair1. paper over the cracks => paper.
★crack
adj [attrib 作定语] very clever or expert; excellent 精明能干的; 技艺高超的; 优秀的: a crack regiment 劲旅 * He's a crack shot, ie expert at shooting. 他是神枪手.
★crack-brained
adj (infml 口) crazy; foolish 疯狂的; 愚蠢的: a crack-brained idea, scheme, etc 愚蠢的念头、 计谋等.
★crack
/ krAk; krAk/ v 1 [I, Tn] (cause to) develop a crack1(1a) or cracks （使）开裂, 破裂, 爆裂: The ice cracked as I stepped onto it. 我一踩冰就裂了. * You can crack this toughened glass, but you can't break it. 这种韧化玻璃只裂不碎. * She has cracked a bone in her arm. 她手臂有一处骨裂. * a cracked mug 有裂纹的缸子. 2 [Tn, Cn.a] break (sth) open or into pieces 砸开或砸碎（某物）: crack a nut 把坚果砸碎 * crack a safe, ie open it to steal from it 砸开保险箱 * crack a casing open 里啪啦打开包装. 3 [Tn, Tn.pr] sth (on/against sth) hit sth sharply 猛击某物: I cracked my head on the low door-frame. 我的头撞在低矮的门框上了. 4 [I, Tn no passive 不用於被动语态] (cause sth to) make a sharp sound （使某物）发出爆裂声; （使某物） 啪作响: crack a whip, one's knuckles 抽鞭子、 屈指节 啪作响 * The hunter's rifle cracked and the deer fell dead. 猎人的枪一响, 鹿即倒地而死. 5 [I, Tn] (cause sb to) cease to resist; (cause sth to) fail （使某人）屈服; （使某事物）垮台: The suspect cracked under questioning. 嫌疑分子在审问之下招供了. * They finally cracked the defence and scored a goal. 他们终於突破了防守, 射进一球. 6 [Tn] (infml 口) solve (a problem, etc) 解决（问题等）: The calculation was difficult, but we finally cracked it. 计算起来很费劲, 然而我们终於解决了. * crack a code, ie decipher it 破译密码. 7 [I] (of the voice) change in depth, loudness, etc suddenly and uncontrollably （指嗓音）突然而失控地改变音色、 音量等: In a voice cracking with emotion, he announced the death of his father. 他悲恸失声地宣布了父亲去世的消息. * A boy's voice cracks (ie becomes deeper) at puberty. 男孩在青春期嗓音改变（声音变粗）. 8 [Tn] (infml 口) open (a bottle, esp of alcoholic drink) and drink its contents 开（瓶, 尤指酒瓶）饮用. 9 [Tn] (infml 口) tell (a joke) 说（笑话）. 10 [Tn] (chemistry 化) break down (heavy oils) by heat and pressure to produce lighter
oils 使裂化（利用高温高压从质量较重的石油里制取轻油）. 11 (idm 习语) cracked `up to be sth (usu negative 通常作否定) (infml 口) reputed to be sth 号称: He's not such a good write