| 词汇 | mad keen (on sth/sb) |
| 释义 | ● mad ˈkeen (on sth /sb )(BrE , informal ) liking sth /sb very much ; very interested in sth (对…)痴迷,迷恋;特别喜欢◆ He's mad keen on planes . 他对飞机十分着迷。See also keen |
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