每个人都有自己的牙刷。

Everyone has their own ___toothbrush

我的牙刷需要换了，因为刷毛已经磨损了。

I need to replace my ___toothbrush because the bristles are worn out.

我每天早晚都用牙刷刷牙。

I use my ___toothbrush to brush my teeth every morning and night.