用于习语come across,主要用法有:(1) 偶然遇见,碰见(=run across)Where did you come [run] across her? 你在那儿碰到她的?I've just come across a beautiful poem in this book. 我在这本书里偶然发现一首优美的诗。(2) 被理解,被传达(=come over)He spoke for a