buckle down
1.PHRASAL VERB 短语动词开始认真做;全力以赴 If you buckle down to something, you start working seriously at it.
【语法信息】：V Pto n
【语法信息】：V P
【STYLE标签】：INFORMAL 非正式
He has buckled down to work in the reserves...
他已经安心在预备役部队服役。
I just buckled down and got on with playing.
我干脆静下心来继续玩。
