notch and tooth joint

例句：

1. 1.The notch in the fence is perfect for attaching a gate.
   篱笆上的槽口非常适合安装一个门。
2. 2. The dentist's skillful work on the tooth joint made the patient's smile brighter.
   牙医对牙齿连接处的熟练处理让病人的笑容更灿烂了。
3. 3. The carpenter carefully fitted the notch and tooth joint to ensure a secure fit.
   木匠仔细地将槽口和牙齿连接处装配好，确保牢固的连接。