collar button meaning in Chinese

[stud] (把硬[软]领扣在无领衬衫上用的)领扣。

The little girl can ' t fasten the collar button
那个小女孩系不上领扣
You forgot to fasten the collar buttons
你忘了系鞋带。
I can ' t fasten this collar button
我系不上这个领子扣。
You forgot to fasten the collar buttons
你忘了系鞋带
He wore prim suits with neckties set primly against the collar buttons of his white shirts
他穿着整洁的外套，领结紧贴着白色衬衫领口的钮扣。