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新东方-柯林斯雅思备考词典
radar
英 [ˈreɪdɑː]
[NOUN]
radars
1. [C, U 有变体名词] 雷达
Radar is a way of discovering the position or speed of objects such as aircraft or ships when they cannot be seen, by using radio signals.
双语例句
例：a ship's radar screen.
一艘船的雷达显示屏。