英语口语900句 11.08.对话.2.旅途防盗

Guard Against Theft

Tom:Where is my backpack?

Marry:I don't know. Where did you leave it?

Tom:I just put it on the chair a while ago, but now it's gone.

Marry:Are you sure?

Tom:Of course, I'm sure. I bet¹ someone stole it.

Marry:Well, you should've kept an eye on it.

1 bet   

v.打赌，以(与)...打赌；n.赌注，赌金；打赌

参考例句：

• I bet you can't do this puzzle.我敢说，你解决不了这个难题。
• I offered to bet with him.我提出与他打赌。