1. 让步 屈服 投降：buckle oneself to 专心从事 | buckle under 让步; 屈服; 投降 | buckle with 扭打; 短兵相接
1. It turned out the horse had a premonition that the bridge would buckle under their weight.
2. " Students'mental state can easily buckle under mounting pressure from both parents and teachers, " Liu says.
verb