I have a sore back.

我背痛。

youdao

It seemed OK at first, but now I have a really sore back.

最初看起来还可以，但是现在我的背非常痛。

youdao

It seemed OK at first, but now I have a really sore back.

最初看起来还可以，但是现在我的背非常痛。

youdao