run into 和run across意思和用法不同run into:1. 撞到，例 run into a wall (撞到墙上)2. 陷入，例 run into trouble (陷入麻烦)3. 跑进，例 run into the store (跑进商店)4. 无意中遇见，例 I ran into her at the party. 我是在派对上无意中遇见她的。run across:1. 跑着穿过，例 run across the yard (跑着穿过院子)2. 无意中找到/遇见，语法类似 run into 的用法4。再给个例子：I ran across her name in the telephone directory.我无意中在电话簿里看见她的名字。
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