n.辊环；衣领；颈圈
名词collar的复数形式.
Collars in the latest fashion all turn up. 最新流行的时装都是衣领向上。
His collars are as stiff as a board. 他的衣领直挺挺的。
The cows wear collars around their necks that identify them to the system. 在奶牛的脖子上戴上颈圈是为了方便系统识别他们。
