| 词汇 | keep up (with sth) |
| 释义 | keep up (with sth) to know about what is happening 知道正在发生的事情；跟上（时代）: ◇you have to read the latest magazines if you want to keep up. 如果你想跟上形势，就要看看最新出版的杂志。 |
| 随便看 |
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