over the past [num.] years vs. in the past [num.] years

over the past [num.] years vs. in the past [num.] years

辨析:“过去数年以来”和“在过去数年中”,在大多数情况下可以混用,接用现在完成时表现一段时间中的变化。但是如果是比较分立的事件,用后者会更合适一些。注意不要省去定冠词the。

例句:
Over the past few years I've had conversations with several experts in the nanotech industry.
He did it every four months when Pearl was alive, but only twice in the past three years.

发布者

陈 欣

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