英语词汇“buckle down”的读音、翻译、释义、用法及例句-留学网

词汇	buckle down
释义	buckle down phr v [I] informal to start working seriously 【非正式】开始认真从事: You'd better buckle down or you'll never pass your exams. 你最好开始认真学习，否则你永远不会通过考试。
随便看	beetled beetler beetlers beetlers' beetles beetle's beetlike beetling beetroot beetroots beets befall befallen befalling befalls befell befit befits befitted befitting before before before beforehand beforehandedness

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