| 释义 |
| | | | NOUN | | | | | /ˈreɪdɑː/ | | | | | | a system that uses radio signals for finding the exact position of something , for example an aircraft or ship 雷达 | military radar systems 军事雷达系统 | | | PHRASE | | - | on/off the radar screen mainly AMERICAN
| | used for saying that someone notices or does not notice an issue or problem | | （问题）被/未被察觉到 | | | | | | |