观察它们是令人痛苦的事。

They are anguishing to observe.

youdao

我知道后者难以理解，但有时像这样令人痛苦的事确实会发生。

I know it's hard to understand, but sometimes painful things like this happen.

youdao

还是一直以来都是我的自作多情，原来爱上一个不在乎自己的人是一件这么令人痛苦的事。

Or has been affectionately my original love with a do not care about their own people is so painful a thing.

youdao