记忆方法
记忆“periscope”的方法可以是将它分解为“peri”和“scope”。将“peri”想象为“围绕”或“周围”，而“scope”代表“观察”。结合起来，可以想象一个可以“围绕观察”周围环境的装置，这正是潜望镜的工作原理。
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中文词源
periscope 潜望镜
peri-,在周围，-scope,看，镜，词源同scope,telescope.引申词义潜望镜。
英语词源
- periscope (n.)
- viewing apparatus on a submarine, 1899, formed in English from peri- "around" + -scope "instrument for viewing." Earlier (1865) a technical term in photography. Related: Periscopic.
权威例句
- 1. The captain of the submarine has got this periscope thing.
- 那个潜艇艇长有个类似于潜望镜之类的东西.
- 2. The captain aligned the periscope on the bearing.
- 船长使潜望镜对准方位。
- 3. Now, peering through the periscope he remarked in businesslike tones.
- 现在, 他一面从潜望镜里观察,一面用精干踏实的口吻说话.
- 4. A simple periscope uses mirrors.
- 简单的潜望镜使用平面镜.
- 5. The periscope bobbed up behind him.
- 他背后的潜望镜突然冒了出来.