methyloic

例句：

1. 1. The compound is made from methyl and oxygen.
   这种化合物是由甲基和氧组成的。
2. 2. The molecule has a methyl group at the end of its chain.
   这个分子链的末端有一个甲基。
3. 3.Methyl iodide is used in the synthesis of many organic compounds.
   甲基碘用于合成许多有机化合物。