他假装是朋友，却通过告密背叛了同事。
He pretended to be a friend but ended up betraying his colleague by reporting him.
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betraying英 /bɪˈtreɪɪŋ/|美 /bɪˈtreɪɪŋ/
解释
betraying 是动词 betray 的现在分词形式。betray 的意思是"背叛、出卖"，指违背信任或忠诚的行为。
He pretended to be a friend but ended up betraying his colleague by reporting him.
betraying 是动词 betray 的现在分词形式。betray 的意思是"背叛、出卖"，指违背信任或忠诚的行为。
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