2 sentences for 胯 (kuà)

1. 这条裤子的胯做得太低，走路不方便。

   zhè tiáo kù​zi de kuà zuò de tài dī, zǒu​lù bù fāng​biàn.

   The crotch of these pants is too low, making it difficult to walk.

   Source: Dong Chinese Dictionary

2. 练瑜伽时要尽量拉伸你的胯，这样身体会更灵活。

   liàn yú​jiā shí yào jǐn​liàng lā​shēn nǐ de kuà, zhè​yàng shēn​tǐ huì gèng líng​huó.

   When practicing yoga, you should stretch your hips as much as possible to make your body more flexible.

   Source: Dong Chinese Dictionary