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他曾一直显得很年轻，但是在过去的几个月里他似乎显得老了。
He had always looked so young, but he seemed to have aged in the last few months.
在过去的几个月里，老师们通过网络直播网上授课。
In the last few months, the teachers have given lessons on the Internet by webcasts.
在过去的几个月里，中国的新冠疫苗运达许多国家。
Over the past few months, Chinese COVID vaccines have arrived in many other countries.
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