您要查找的是不是：
- We must plod away at our task no matter how difficult it is, we mustn’t let up on it. 不管困难多大，咱们得使劲干；我们绝不能松劲。
- We must not let up now that we have nearly achieved our objective . 我们的目标既然快实现了，就不能松懈下来。
- We mustn't let up now that we have nearly achieved our objective. 我们的目标既然快实现了,就不能松懈下来。
- C'mon don't let up now, this win should help heal T-Mac's back. 振作起来吧,不要太失望,赢得比赛的胜利会对麦迪的回归有所帮助。
- It took years and years for the early work of Barbara McClintock, a geneticist who won the 1983 Nobel Prize in medicine, to be generally accepted.Yet she didn’t let up on her experiments. 1983年诺贝尔医学奖的获得者`遗传学家巴巴拉.;麦克林托克早年的工作直到很多年后才被公众所承认
- We mustn' t slide into complacency. 我们决不可产生自满情绪.
- We mustn't let up now. 我们现在可不能放松啊。
- We mustn’t touch the sick prisons. 我 们不应该接触生病的监狱。
- We mustn＇t judge by appearances. 我们不可以貌取人.
- We mustn't let up, even though we're winning. 我们即使快赢了也决不可松劲。
- Where on earth have we fetched up now? 我们现在究竟到哪里了?
- We mustn' t hold against him that he has been in prison. 我们不要因为他过去坐过牢而对他有偏见。
- We mustn' t waste a drop of water or a grain of rice. 一滴水一粒米我们都不应当浪费。
- Don' t let such a little victory puff you up. 不要让这样一点点胜利使你们骄傲自大起来。
- We mustn' t sit by while our neighbouring commune is short of manpower. 邻近的公社正缺少劳动力，我们可不能袖手旁观。
- Let up for a minute. You can't work hard all day. 暂停一会儿，你不能整天都拼命工作。
- The field where we played are all built up now. 曾经是我们玩耍场所的田野如今已盖满了房了。
- Mustn’t let metal or other foreign substances interfuse into the gunk. 切勿让金属或其他杂物混入料斗。
- He refused to let up on the boy until his school grades improved. 直到那孩子学业有了进步他才肯放宽他对他的管束。
- We can t let you have any more material. 我们不能再供给你原料了。
