英语四级经典必背500句：听力口语关键句31 31 .He probably just got holdup in the traffic. 四级词汇讲解: hold up意为 持续;延缓 。结合语境可以知道，get holdup意为 被耽搁 。 英语四级考点归纳： 像holdup这样把构成动词短语的两个词连在一起变成名词的情况有很多，包括: backup支援 cleanup打扫 makeup化妆 warm-up热身 sit-in静坐抗议 getaway逃跑，逃脱 breakthrough突破 dropout退出
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