truckle

The heavy wardrobe glides easily on its four brass truckles.

用法提示：truckles 为名词复数，指衣柜底部的小脚轮（脚轮）。

After the wheel broke, he ordered a new truckle from the hardware store.

用法提示：truckle 为名词单数，指单个的小脚轮（脚轮）。

The mechanic oiled the truckle on the workshop cart so it would turn smoothly.

用法提示：truckle 为名词单数，指推车上的小脚轮（脚轮）。