arthroscope

例句：

1. 1. Heused an arthroscope to examine the injured knee.
   他使用关节镜检查了受伤的膝盖。
2. 2. The doctor inserted a knee-joint scope into his patient's knee joint.
   医生将一个膝关节镜插入患者的膝关节。
3. 3. During surgery, the surgeon uses a knee-joint scope to visualize the area around the knee joint.
   在手术期间，外科医生使用膝关节镜来可视化膝关节周围的区域。