Level 4 · word 3,944 of 20,000
radar
/ˈreɪˌdɑːr/
American
- n. 雷达, 无线电探测器
- Definition
- n. a system that uses radio waves to find the position of moving objects
- Example
- The pilot checked the radar screen for any nearby storms.
- 飞行员查看雷达屏幕，看附近是否有风暴。