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- Some Australopithecus molars show no trace of microscopic cracks that hard foods should create. 一些南方古猿的磨牙看不出坚硬的食物会留下的显微裂缝的痕迹。
- Repetitive loading of bone causes fatigue damage,manifested as microscopic cracks within the tissue. 骨的重复负荷导致疲劳性损伤,表现为组织微裂隙。
- Rather than analyse microscopic cracks in tooth enamel or the chemical composition of bone, as others had done, Strait's team took an approach more common to mechanical engineering. 斯特雷特研究小组采取了一个比机械工程更常见的做法，而不是像别人所做的一样，分析牙齿珐琅质里面的显微裂缝或骨头的化学成分。
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- You'll crack up if you go on working so hard. 你继续这样拚命干下去，身体会吃不消的。
- Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
- We can't see microscopic creature with naked eyes. 我们不能用肉眼看到微生物。
- The microscopic structure of tissue. 组织机构组织的微观结构
- She made a crack about his fatness. 她取笑他肥胖。
- There is a crack in this window. 这扇窗户上有个裂纹。
- She got up at the crack of dawn. 天刚亮她便起床了。
- Mary found knitting a hard nut to crack. 玛丽发现编织并非易事。
- He was the tough guy, the big shot, who gave orders with the crack of a whip. 他是个威风凛凛发号施令的强悍的家伙，是个大人物。
- Some insects have microscopic vision. 一些昆虫有精微的视力。
- The lady look one another over with microscopic carelessness. 女士们以显微镜式的、好象漫不经心的眼光彼此察看了(一会儿)。
- I'd do anything to see you crack a smile. 为了博得你的一笑，我情愿做任何事。
- The doctor had a microscopic examination of traces of blood. 医生用显微镜作了血迹检查。
- Her foot wedged in the narrow crack. 她的脚卡在那狭缝里了。
