She came across three children sleeping un
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She came across three children sleeping under a bridge.
A:found by chance B:passed by C:took a notice of D:woke up
热搜：un是什么国际组织
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答案：A
本句意思：她偶然遇到三个孩子睡在桥下。come across意思是“偶遇，突然发现”，与find by chance（偶然发现）意思相近。pass by经过；take a notice of注意；wake up醒来，起床；开始警觉。