jiào liàn / tí xǐng / wǒ men / zuò / shēn dūn / shí / bǎo chí / bèi bù / tǐng zhí / xī gài / bú yào / xiàng nèi kòu

教练提醒我们做深蹲时保持背部挺直，膝盖不要向内扣。

The coach reminded us to keep our backs straight and not let our knees cave inward when doing squats.