patellar

例句：

1. 1. He injured his knee during the game and had to go to the hospital.
   他在比赛中伤了膝盖，不得不去医院。
2. 2.She was wearing a knee brace while she was recovering from her surgery.
   她在康复期间戴着膝盖护具。
3. 3. The doctor advised him to avoid heavy lifting until his knee healed completely.
   医生建议他直到膝盖完全愈合之前避免重举。