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词汇 present perfect
释义 present per·fect /ˌ·· ˈ··/
n
the present perfect the tense of a verb that shows a time up to and including the present, and is formed with 'have' and the PAST PARTICIPLE as in 'he has gone'. 现在完成式〔以动词的过去分词加 have 构成,如 'he has gone'〕
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