toothcomb

例句：

1. 1. I need to brush myteeth before bedtime.
   我需要在睡前刷牙。
2. 2.The dentist gave me a new toothcomb as a gift.
   牙医给了我一个新牙刷作为礼物。
3. 3. She used her toothcomb to clean her teeth.
   她用牙刷清洁她的牙齿。