a 对不起大家，我来晚了。

　　b hi, don’t worry - take a seat. what can i get you

　　b 你好，不必在意——坐下。你想要什么？

　　a i only want a snack. i'm not very hungry.

　　a 我只想要一份快餐。我不太饿。

　　b that's not like you!

　　b 这可不像你！

　　a no, but i had dinner with the family. it's my sister's birthday today.

　　a 是的，但是我已经和家人吃过饭了。今天是我姐姐的生日。

　　b well, help yourself. there's plenty of food left.

　　b 哦，那你随便。还剩下足够多的食物。

　　notes 注释

　　1 if you go to dinner with friends, and you have reason for not wanting to eat very much, you can explain: i only want a snack. / i only want a snack. / i'm not very hungry. / i'm not very hungry. / i had dinner with the family. / i had dinner with the family.

　　如果你去和朋友吃饭，而且你有理由不想吃得太多，你可以这样解释：i only want a snack. /我只想要一份快餐。/ i'm not very hungry. /我不太饿。/ i had dinner with the family. /我已经和家人吃过饭了。

　　2 if you are surprised at a friend's behaviour, you can say: that's not like you! / that's not like you!

　　如果你对朋友的举止很吃惊，你可以说：that's not like you! /这可不像你！