be supposed to 意为“应该”,后接动词原形,用来表示劝告、建议、义务、责任等。相当于 should 或 ought to 。否定形式为:be not supposed to do sth. ”不应该做某事“。 一、当主语为“人”时,表示“应该,被期望”。如:Everyone is supposed to wear a seat-belt in the car. 每个人乘车时都应该系安全带。 二、当主语为“物”时,表示“本应;本该(某事本应发生而实际没发生)”。如: The train was supposed to arrive half an hour ago. 火车本应在半小时前到达。 来源:网络。本文版权归原创作者所有。若侵联删。 |
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