periscope
UK/'periskәup/US
IELTSGREC2
释义
n.
An optical instrument, typically a tube with mirrors or prisms, for viewing over or around an obstacle from a concealed position, as in a submarine.
潜望镜（通常是带镜子或棱镜的管状光学仪器，用于从隐蔽位置越过或绕过障碍物观察，如潜艇上所用）。
词根拆分
词根派生peri-（周围）+ scope（看）= 绕过或越过挡路之物观看的仪器。镜片把光路折弯，让藏在下方的观察者能看到障碍之上或之外发生的事。
词根 scope 还连着 4 个词常用搭配
- 1.raise the periscope升起潜望镜
- 2.submarine periscope潜艇潜望镜
- 3.look through a periscope通过潜望镜观察
- 4.lower the periscope放下潜望镜
例句
- 1.
The submarine raised its periscope to scan the surface for ships.
潜艇升起潜望镜，扫视水面寻找船只。
- 2.
Through the periscope, the captain watched the convoy without being seen.
船长透过潜望镜观察船队，自己却不被发现。
- 3.
Soldiers in the trench used a periscope to look over the parapet safely.
战壕里的士兵用潜望镜安全地越过胸墙观察。