drop out   (TTS發音)

leave；cease to attend離去；不出席

    A few had even dropped out，but nearly half of these had returned to graduate. 少數人甚至已輟學，但近一半的人又返校以求畢業。

    She has dropped out of society. 她已經退出社交界。

    When Peter saw that he hadn't a chance，he dropped out of the race. 彼得看出他沒有獲勝的機會時，就退出了比賽。