实用短语buckle down用法解析
buckle down (to sth)开始认真做；努力干；全力以赴；倾全力to start to do sth seriously例：I'd better buckle down to those reports.我最好认真静下来努力完成那些报告。She f
buckle
单词联想buck ，buckle ，buckle up，buckle down
n. （美）元；雄性动物；小伙子；纨绔子弟，花花公子；责任，过失
buckle down (to sth)开始认真做；努力干；全力以赴；倾全力to start to do sth seriously例：I'd better buckle down to those reports.我最好认真静下来努力完成那些报告。She f
n. （美）元；雄性动物；小伙子；纨绔子弟，花花公子；责任，过失