外人: 1.(局外人; 无亲友关系的人) stranger; outsider 短语和例子别客气, 我又不是外人。 don't stand on ceremony. i'm no stranger. 这件事别跟外人说。 never mention it to outsiders. 你们还是把我当外人。 you're still treating me like an outside
案外人: person other than involved in the casepersonotherthaninvolvedinthecase