She buckled down to housework.

她埋头家务。

youdao

They chatted idly for a few moments, then each buckled down to work.

他们闲聊了一会儿；然后各人集中精神干活。

youdao

So, I've buckled down to my studies and managed to get through all the exams a year before.

所以我一年前就开始很认真的对待学习，通过了所有考试。

youdao

They faced reality, got credit counseling and buckled down for the next 5 years to pay off their debt.

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