It's too hot inside the room, so he has to unbutton his coat to cool down.
室里太热了, 他只好松解衣扣凉快一下.
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Director: Mrs could you unbutton your coat please? let's examine your and abdomen.
主任: 太太,请解开您的上衣好吗? 让我们检查一下胸腹部.
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Unbutton your coat and lift It'slightly when driving to avoid friction.
开车时,脱掉皮草衣服,轻轻地挂在一边避免摩擦.
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