frit seal

例句：

1. 1. The frit seal was used to keep the fruit fresh for a long time.
   果冻密封被用来长时间保持水果的新鲜。
2. 2. The frit seal is a popular dessert in many countries.
   果冻密封是一种在许多国家都很受欢迎的甜点。
3. 3.The frit seal is made from gelatin and water, which makes it easy to mold.
   果冻密封是由明胶和水制成的，这使得它容易成型。