| 词汇 | radar |
| 释义 | radarBrE /ˈreɪdɑː(r)/ NAmE /ˈreɪdɑːr/ noun [U ]a system that uses radio waves to find the position and movement of objects , for example planes and ships , when they cannot be seen 雷达◆ They located the ship by radar . 他们通过雷达确定了船只的位置。◆ a radar screen 雷达显示屏 ➡ compare sonar ● below /under the ˈradar used to say that people are not aware of sth 在视线以外的；未引起注意的◆ Experts say a lot of corporate crime stays under the radar . 专家说许多公司犯罪还没有为人所注意到。● on /off the ˈradar screen used to say that people's attention is on or not on sth 受/不受人关注◆ The issue of terrorism is back on the radar screen . 恐怖主义问题重新受人关注。 |
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