by accident 托福

I trod on his foot by accident.

我偶然踩他的脚。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年偶然现青霉素。

We met by accident at the airport.

我们在机场不期而遇。

Helen got into acting purely by accident.

海伦进入演偶然。

He made this mistake by accident.

他犯这个错误偶然。

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

"一枚手榴弹意外地爆炸,接着是一片混乱,使我不知所措。"

I hurt myself by accident.

我不小心弄伤自己。