belt buckle

例句：

1. 1. He fastened his belt buckle tightly around his waist.
   他紧紧地将腰带扣固定在腰间。
2. 2. The car's dashboard had a belt buckle for the driver to adjust the seat.
   汽车的仪表盘有一个腰带扣，供司机调整座椅。
3. 3. She slipped her feet into the shoes, then tightened the belt buckle and zipped up the zipper.
   她把脚伸进鞋子里，然后紧固腰带扣并拉上拉链。