| 单词 | open up |
| 释义 | Word Frequency open upverb (adverb) 1. (intransitive) to start firing a gun or guns 2. (intransitive) to speak freely or without restraint 3. (intransitive) informal (of a motor vehicle) to accelerate 4. (transitive) to render accessible the motorway opened up the remoter areas 5. to make or become more exciting or lively the game opened up after half-time |
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