骑了两个小时自行车后，我的大腿感到酸痛。

My ___thigh feels sore after cycling for two hours.

他摔了一跤，右大腿擦伤了。

He fell and scraped his right ___thigh.

这道菜用的是鸭腿肉，味道很鲜美。

This dish uses duck ___thigh meat and tastes delicious.