by accident 托福

We met by accident at the airport.

我们在机场不期而遇。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年偶然发现了青霉素。

I trod on his foot by accident.

我偶然踩了他的脚。

Helen got into acting purely by accident.

海伦艺界纯偶然。

He made this mistake by accident.

他犯这个错误纯偶然。

A hand grenade exploded by accident and I got lost in the ensuing confusion.

"一枚手榴弹意外地发生了,着是一片混乱,使我不知所措。"

I hurt myself by accident.

我不小心弄伤了自己。