| 单词 | open (sth) up |
| 释义 | open (sth) up open (sth) up — phrasal verb with open /ˈəʊ.pən/ aep /ˈoʊ-/ verb ► F0 to open the lock on the door of a building: » The caretaker opens up the school every morning at seven.Thesaurus+: ↑Unfastening and opening |
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