| 单词 | buckle down |
| 释义 | buckle down buckle down — phrasal verb with buckle /ˈbʌk.l̩/ verb ► F0 to start working hard: » He'll have to buckle down (to his work) soon if he wants to pass these exams.Thesaurus+: ↑Work, working and the workplace , ↑Working hours and periods of work |
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