He found it hard to buckle down.
他发现要想扣紧很难。
If you want to learn English you have to buckle down.
如果你想学英语，你就得非常努力。
We must buckle down ourselves until we complete the tower.
我们必须全力以赴直到我们完成了这座塔的兴建。
I had to sleep face down for the first month to give the "buckle" time to heal in its normal position.
我不得不在第一个月仰面而睡以便能够给“小扣带”时间让它恢复到正常的位置。
I had to sleep face down for the first month to give the "buckle" time to heal in its normal position.
我不得不在第一个月仰面而睡以便能够给“小扣带”时间让它恢复到正常的位置。
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