benzylidene

例句：

1. 1.The benzylidene dye is used in the production of plastics.
   苯乙炔染料用于塑料的生产。
2. 2. Benzylidene is a compound that can be found in many natural products.
   苯乙炔是一种可以在许多天然产品中找到的化合物。
3. 3. In the chemical industry, benzylidene is often used as a starting material for the synthesis of other chemicals.
   在化学工业中，苯乙炔常被用作合成其他化学品的起始材料。