| 短语 | be well up in / on sth |
| 释义 | be well up in / on sth informal especially BrEto know a lot about a particular subject对〔某个科目〕非常熟悉:•Geoff's always been well up on the Internet.杰夫对因特网一直都很熟悉。be well up in / on sth informal also be up on sth AmEto know a lot about something非常熟悉某事物; 精通某事物:•I'm not all that well up in musical matters.音乐方面我不太懂。•Conrad's really up on his geography, isn't he?康拉德地理学得非常好，是吗？ |
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