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1·Until this week, every attempt to tighten up the law had failed.

到本周为止，一切严格执法的努力都失败了。《柯林斯英汉双解大词典》

2·It's important to tighten up the wheels properly, otherwise they vibrate loose and fall off.

把车轮拧紧很重要，否则它们会振动而松脱。《柯林斯英汉双解大词典》

3·Tighten up with the supplied wrench.

使用扳手固定。

4·You want to tighten up the kevlar, OK?

你应该穿防弹衣的，好吗？

5·We need to tighten up security at the prison.

我们必须加强监狱的安全性。

6·If you look at them as special, you might tighten up a bit.

如果你看他们的特殊，您可能会收紧一点。

7·His efforts to tighten up quality control led to a commercial coup.

他努力加强质量把关，赢得了巨大的商业成功。

8·Wrap your body tightly to a chain which is already tighten up.

用自己的身体紧紧缠绕住一根绷紧的锁链上。

9·At present there is little pressure to tighten up the industry.

目前，此行业被收紧的压力极小。

10·When trying to hit the ball hard, most players tend to tighten up.

在大力击球前，多数球手都会把肌肉绷得很紧。

加强

1·His efforts to tighten up quality control led to a commercial coup.

他努力加强质量把关，赢得了巨大的商业成功。

2·Republicans want to tighten up the testing part, but not to spend much more money.

共和党人想加强这种测试，但是却不想在这个上面画更多的钱。

3·Objective: to tighten up the hygienic management of food service personnel, and to watch the groups serotypes in area, for prevention food poisoning caused by salmonella from coming on.

目的：为了加强饮食食品从业人员的卫生管理，了解本辖区沙门氏菌菌型变迁的情况，防止因沙门氏菌引起的食物中毒的发生。

4·We need to tighten up security at the prison.

我们必须加强监狱的安全性。

5·That's what I was trying to tighten up now, in this last week, when I was practicing extremely hard.

我失去了发球和正拍，那是我现在尝试要加强的，在过去一周，我极度努力的训练，希望这周可以展现一些。