preformed gum

例句：

1. 1. This type of gum is ideal for people with sensitive teeth.
   这种胶粘剂适合牙齿敏感的人。
2. 2.The manufacturer claims that the gum has no harmful chemicals in it.
   制造商声称这种胶粘剂不含有害化学物质。
3. 3. The dentist advised us to use this preformed gum before our next appointment.
   牙医建议我们在下次预约前使用这种预成型胶粘剂。