事实上，无论你蹲得多么深，你都能失去天生的腰背骨曲线。

The essential fact here is that no matter how deep you go, you must not lose the natural curve of your lumbar spine.

youdao

事实上，无论你蹲得多么深，你都能失去天生的腰背骨曲线。

The essential fact here is that no matter how deep you go, you must not lose the natural curve of your lumbar spine.

youdao