He stumbled upon some guy rifling through Amanda's stuff.他撞見某人在偷阿曼達的東西

stumble upon偶爾發現

I stumble upon the rare book in a second-hand bookstore.

我在一家舊書店偶然找到這本珍貴的書。

I soon stumbled upon my first major revelation.

我很快就遇到了我上面說的第一個問題。

A set of hi8 videotapes.一盤Hi8錄像帶

a set of一套

She bought a set of furniture on easy terms.

她以分期付款的方式買了一套家具。

The boy itches for a set of the new stamp.

男孩渴望得到一套這種新郵票。

How much collateral damage are you willing to accept?你還想看到多少人因此而連帶受傷

be willing to樂于； 愿意

I don't know whether he is willing to come.

我不知道他是否愿意來。

Successful are those who are willing to take pains.

成功的人都是那些肯努力的人。