tragacanth gum

例句：

1. 1.This type of gum is commonly used in chewing gum and toothpaste.
   这种类型的胶在口香糖和牙膏中常用。
2. 2.The manufacturer claims that the gum helps to strengthen teeth.
   制造商声称这种胶有助于加强牙齿。
3. 3.The gum was made from natural sources, making it an eco-friendly alternative to traditional petroleum-based products.
   这种胶是由天然来源制成的，使其成为与传统石油基产品相比的环保替代品。