不能改成 had worked （过去完成时）
能改成 has worked （现在完成时,表示过去发生,持续到现在）
Well,he has worked with some French engineers for three years.
嗯,他和一些法国工程师共事了三年时间.
well,he worked with some French engineers for three years,改成HAD WORKED不行吗
well,he worked with some French engineers for three years,改成HAD WORKED不行吗
英语人气：257 ℃时间：2020-07-02 23:56:34
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