crack

Thunder cracked overhead..雷声在头顶炸响。

He cracked his whip and galloped off..他甩了个响鞭策马而去。

Dennis rubbed his hands together and cracked his knuckles..丹尼斯搓着双手，把指关节弄得咯咯响。

fatigue crack,疲劳裂纹

crack down,镇压；取缔；劈啪击下

crack propagation,裂纹扩展

crack down on,镇压；制裁

crack tip,裂纹尖端，裂纹端

crack growth,裂纹扩展；龟裂增长

crack on,v. [口]继续疾驶；满帆前进；继续干下去

crack resistance,抗裂性；抗裂度；裂纹阻力

crack initiation,裂纹萌生；裂纹开裂

crack width,裂缝宽度

crack control,n. 裂绞控制

crack length,裂纹长度；裂缝长度；裂隙长度

crack formation,龟裂形成

get cracking,开始；开始工作；开始移动

hot crack,[机]热裂，过热裂缝

crack a smile,[俚]展颜微笑

transverse crack,横裂；横向裂缝

crack extension,裂纹扩展；裂纹扩张

crack detection,裂纹检验

shrinkage crack,收缩裂缝

真题例句...the key factor is how hard you are prepared to crack the whip...第三套CET62013.6阅读理解

真题例句...Three year students get first crack at course registration...CET62012.6阅读理解