drive side of tooth

例句：

1. 1.The dentist advised us to brush our teeth twice a day for better oral health.
   牙医建议我们每天刷牙两次以维护口腔健康。
2. 2.When you bite into a piece of cake, the drive side of your tooth will be exposed.
   当你咬一口蛋糕时，你的牙齿的驱动侧会被暴露出来。
3. 3.The carpenter carefully carved the wood to ensure that the drive side of the door was smooth and even.
   木匠仔细雕刻木材，以确保门的驱动侧平滑且均匀。