phthalide

例句：

1. 1. The scientist discovered a new compound that exhibits phthalide properties.
   科学家发现了一种具有萤石性质的新化合物。
2. 2. The phthalide in the paint is what gives it its distinctive glow.
   油漆中的萤石赋予了它独特的光泽。
3. 3. The phthalide crystals were used to create colorful decorations for the festival.
   萤石晶体被用来为节日创造多彩的装饰品。