A: A button came off my shirt.

　　A:我衬衫上的一颗扣子掉了。

　　B: What are you going to do?

　　B:那怎么办?

　　A: First, I have to find the button.

　　A:首先，我得找着那颗扣子。

　　B: Where did you lose it?

　　B:在哪儿掉的?

　　A: I have no idea.

　　A:不知道。

　　B: A button is hard to find. Did you look in your pant cuffs?

　　B:扣子很难找的。你看裤子翻边儿里有没有?

　　A: That's a good idea.

　　A:好主意。

　　B: I found a button in my pant cuffs one time.

　　B:我有一次就在我的裤子翻边儿里发现了一颗扣子。

　　A: Let me look. No, it's not there.

　　A:那我看看，没有。

　　B: Many shirts come with an extra button.

　　B:很多衬衫都带着多余的扣子。

　　A: You're right. This one does have an extra button.

　　A:说的对，这件就有一颗。

　　B: Now all you have to do is sew it on.

　　B:现在缝上它就行了。