1--Excuse me. I'm afraid you've made a mistake. This is my luggage.
 
2--Oh, I'm very sorry. The two suitcases look almost the same.
 
1--That's all right. Just be carefull next time.
 
2--I will.
 
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注解：
 
1.luggage行李
2.suitcase(旅行用)小提箱，衣箱
3.next time下次
 
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译文：
 
1--对不起。您恐怕弄错了。这是我的行李。
2--哦，真抱歉。这两个皮箱看起来差不多一模一样。
1--没关系，下次注意点。
2--我会的。