buckle

扣住；变弯曲英释中释vto become bent or curved because of heat or pressure, or to make something bend or curve in this way

皮带扣，带扣英释中释na piece of metal used for fastening the two ends of a belt, for fastening a shoe, bag etc, or for decoration

1 belt buckle,皮带搭扣；束衣扣

2 buckle down,倾全力；开始认真从事

3 buckle up,系好安全带；把…扣紧

1 The steel pillars began to buckle..这些钢柱开始变形了。