您要查找的是不是：
- 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。
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- 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。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- She made a crack about his fatness. 她取笑他肥胖。
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- There is a crack in this window. 这扇窗户上有个裂纹。
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- She got up at the crack of dawn. 天刚亮她便起床了。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- 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。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
- An active volcano may erupt at any time. 活火山随时可能喷发。
- 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。
