動詞 buckle:

1. fasten with a buckle or buckles
   同義詞：buckle, clasp
2. fold or collapse
   同義詞：buckle, crumple
3. bend out of shape, as under pressure or from heat
   同義詞：heave, buckle, warp

1. They chatted idly for a few moments, then each buckled down to work.
   他們閑聊了一會兒; 然后各人集中精神干活。
2. She's really buckling down to her new job.
   她埋頭苦干做新工作。