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1. "run into" 用于描述偶然遇到某人或某事,也可以表示遭遇困難或問題,如:"I ran into my ex-colleague at the conference."(我在會議上偶遇了我的前同事。)2. "run away" 通常指逃跑或逃離某個地方,也可以用來描述孩子或動物離家出走,如:"The boy ran away from school because he was bullied."(那個男孩因為被欺負而逃離了學校。)3. "run out" 意味著用完或耗盡,常用于描述物品的消耗或時間的結束,如:"Our water supply has run out, we need to buy more."(我們的供水用完了,我們需要買更多的水。)