我经常做运动，而且经常打球，但是我从未背痛过。

I get a lot of exercise and I play lots of sports, but I've never had such a terrible backache.

youdao

我经常做运动，而且经常打球，但是我从未背痛过。

I get a lot of exercise and I play lots of sports, but I've never had such a terrible backache.

youdao