It was an unfortunate accident.

那是一次不幸的事故。

《牛津词典》

Was an unfortunate accident.

是一个不幸的意外。

youdao

Suffered an unfortunate accident.

遭遇到不幸的事故。

youdao

It was unfortunate that there should be such an accident.

不幸事故之后，我一直睡得很不好。

youdao

It was unfortunate that there should be such an accident.

不幸事故之后，我一直睡得很不好。

youdao