A I'm afraid I have to return this sweater.
恐怕我得把这件毛衣退掉。
B May I ask if there's anything wrong with it?
请问毛衣有什么毛病吗？
A You see,there is a run at the neck.
你看，脖子这块脱针了。
B Oh,sorry.But do you want to change it for another one?
哦，对不起。你想换一件吗？
A No,thank you.
不想换，谢谢你。