点击下方单词,选择对的这个单词
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及物动词
名词
1. 先生(对男子的称呼，尤为儿语或用于称呼不知姓名的男子)Men are sometimes addressed as mister, especially by children and especially when the person talking to them does not know their name.
多通过句子记忆单词，而不是单独死记硬背。
