Also some food contains a lot of preservative, graces agent, eat too much will damage the liver damage vitamin... the dangers of junk food is how terrible!

还有些食品含有大量的防腐剂、增色剂，食用过多会损伤肝脏严重破坏维生素……垃圾食品的危害是多么可怕啊！

youdao

Or methanal Formaldehyde (37%) in water solution, called formalin, is used as a preservative, an embalming agent, and a disinfectant.

通常以福尔·马林(含甲醛37%的水溶液)形式出售，用于防腐剂、尸体保存以及消毒剂。

youdao

Trehalose is a kind of preservative agent which has potential application.

海藻糖是一种具有广阔应用前景的生物保护剂。

youdao