| 词汇 | open up |
| 释义 | ● ˌopen ˈup to begin shooting 开火◆ Anti -aircraft guns opened up . 高射炮开始射击。 (often used in orders 常用于命令) to open a door , container , etc .打开（门、容器等）◆ Open up or we'll break the door down ! 开门！不然就砸门了！See also open |
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