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1·The road has a 30 mph speed limit.

这条公路限定时速30英里。《牛津词典》

2·You should always keep to the speed limit.

什么时候你都不得超过最高速度限制。《牛津词典》

3·He was driving at well over the speed limit.

他当时开车的速度远远超过了限制。《牛津词典》

4·What's the point in producing an engine that is big and powerful enough to go like 200 kilometers an hour when the speed limit is only 100?

如果车速限制是100千米每小时，生产一个足够大、足够强、时速能达到每小时200公里的引擎有什么意义呢？

5·You've got to keep to the speed limit.

你必须遵守限速的规定。《柯林斯英汉双解大词典》

6·The speed limit on the freeway is 55mph.

这条高速公路的限速为每小时55英里。《柯林斯英汉双解大词典》

7·The speed limit must be rigidly enforced.

必须严格执行限速规定。《牛津词典》

8·He accepts that he was exceeding the speed limit.

他承认他当时超过了速限。《柯林斯英汉双解大词典》

9·A speed limit of 30 mph was introduced in built-up areas.

在建筑物密集区域，限速为每小时30英里。《柯林斯英汉双解大词典》

10·I was fined $158 for exceeding the speed limit by 15 mph.

我因超限速15英里每小时被罚了$158。《柯林斯英汉双解大词典》