1、 Vacations have lengthened and the work week has shortened.
假期延长了，工作周变短了。
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2、 It used to be three kilometres but most people wanted to do a bit more than that so we lengthened it to five kilometres—we now go round the lake twice and that adds an extra two kilometres.
以前是3公里，但大多数人想多逛一下，所以我们把路程延长到5公里—现在我们绕湖两圈，这就比以前增加了2公里。
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