现在完成时态：present perfect tense
乒乓球男单冠军：table tennis championship men's single
现在完成进行时态the present perfect continuous tense
乒乓球男单冠军 Champion of Table Tennis Man Single
present perfect tense 现在完成时态
table tennis championship men's single 乒乓球男单冠军
present perfect progressive现在完成进行时态
Table tennis men's singles champion
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