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更新日期:2026-08-14
be doubtful of1.(对某事物)不能确定;拿不准:The youth is a newcomer,he is doubtful of what to do.那个青年是新来的人,他不能确定该做什么。2.(对某人、某事物)怀疑:We never do shopping in that shop because we are doubtful of the quality of their goods.我们向来不在那家商店购物,因为我们怀疑其货物的质量。