phenelyl

例句：

1. 1. The polymer is made from phenelyl monomers.
   这种聚合物是由苯乙烯基单体制成的。
2. 2. Phenelyl is a common structural unit in many natural products.
   苯乙烯基是许多天然产物中常见的结构单元。
3. 3. The molecule has a benzene ring and a methyl group at one end, which makes it a versatile synthetic material.
   这个分子有一个苯环和一个甲基端，这使得它成为一种多功能的合成材料。