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。
You want to tighten up the kevlar, OK?
你应该穿防弹衣的，好吗？
We need to tighten up security at the prison.
我们必须加强监狱的安全性。
At present there is little pressure to tighten up the industry.
目前，此行业被收紧的压力极小。
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。
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。
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。
Will she continue to use Foursquare, or at least tighten up her privacy Settings?
她是否会继续使用Fours quare，还是会调高隐私设置？
The screw on the machine seems loose; you need to tighten it up.
这机器的螺丝钉松了，你要上紧。
Move the feed DOG up or down to perform adjustment, then securely tighten the screw.
上下移动送布牙调节高度，然后拧紧紧固螺丝。
That is when the supply starts to increase the registration becomes tighten up.
软公共品供给开始增长时，会使户籍管制程度变得更为严格；
That is when the supply starts to increase the registration becomes tighten up.
软公共品供给开始增长时，会使户籍管制程度变得更为严格；
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