英语词汇“sentry”的释义、用法及例句-英汉例句词典-知否

词汇	sentry
例句	noun to be on sentry duty放哨 People approaching the gate were challenged by the sentry. Everyone took their turn at sentry duty.
随便看	centre field centre in centre-left centre of mass centre on centrepiece centre-right centre round centres centres/centers of gravity centres of mass centre something around/on/round/upon somebody/something centre something in… centre stage centre upon -centric centrifugal centring centripetal centripetal force centrist centuries century CEO cephalic

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