gonioscope

例句：

1. 1. The doctor used a gonioscope to examine the patient's knee joint.
   医生使用直视镜检查患者的膝关节。
2. 2. The astronaut used an endoscope to explore the space station's interior.
   宇航员使用内窥镜探索太空站的内部。
3. 3. She took a perspective of the city from her new apartment window.
   她从新公寓的窗户俯瞰城市。