上髁

例句：

1. 1. He sat with his knees on the table, looking at the map.
   他坐在桌边，膝盖抵着桌面，看着地图。
2. 2. The doctor advised him to rest and not to strain his knee.
   医生建议他休息，不要拉伤膝盖。
3. 3. She lifted her leg to show how her knee was healing.
   她抬起腿来展示她的膝盖正在愈合。