bit brace

例句：

1. 1.The dentist gave me a small bit brace to hold my teeth together.
   牙医给我一个小的支撑物来固定我的牙齿。
2. 2. The old man used a bit brace to support his weakened back.
   老人用一个小支撑物来支撑他虚弱的背部。
3. 3. The car was damaged and needed a bit brace to fix it.
   汽车受损了，需要一个小支撑物来修复它。