I've seen worse.

我还知道更糟糕的事、“这还算好的呢”，用于鼓励遇到挫折的人。

That was a bad movie. 那真是部糟糕的电影。

I've seen worse. 这还算好的呢。

It could have been worse. 还有比这更糟的呢!

It might have been worse. 也许有的比这更糟呢。