to buckle down
[phrase form: buckle]
01
认真工作, 埋头苦干
to work hard in order to achieve a goal
例子
The company had to buckle down and overcome the financial challenges.
公司不得不全力以赴并克服财务挑战。
02
扣紧, 牢固固定
to securely fasten something in place
例子
Make sure to buckle down your helmet before riding the bike.
骑自行车前确保扣紧你的头盔。
