Crossing Tripoli used to take 20 minutes; it can now take two hours.
开车穿越黎波里以前只需要20分钟，如今可能需要两个小时。
The automatic washing-machine might give it a close run in countries where it is commonplace, by freeing women from an activity that used to take many hours a week.
在洗衣机普遍使用的国家，洗衣机的功效与避孕药不相上下：妇女们就不必每周再花把个小时洗衣服了。
That's right! We can flight from one country to another in a few hours. But it used to take months to go from one country to another.
对的！现在我们可以几个小时之内就从一个国家飞到另外一个国家了。过去可能需要花费几个月的时间才能从一个国家旅行到另一个国家。
It used to take three and a half hours and it was quite dangerous.
以前的火车需要三个半个小时行驶时间并且是相当危险的。
It used to take me more than two hours to get to school by bus.
以前乘公共汽车上学往往要花费我两个多小时。
It used to take me more than two hours to get to school by bus.
以前乘公共汽车上学往往要花费我两个多小时。
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