这种儿童餐具由三聚氰胺制成，既轻便又不易碎。

These kids' tableware is made of ___melamine, being lightweight and shatter-resistant.

一些不法商家在宠物食品中非法添加三聚氰胺以提高虚假蛋白质含量。

Some unscrupulous businesses illegally add ___melamine to pet food to falsely boost protein levels.