n.乙基(含四乙铅的汽车燃料)
In Brazil, about 40% of all motor fuel is ethanol, also known as ethyl alcohol. 在巴西,所有机动燃料的大约40%25是乙醇,也就是酒精。
n.乙烯
adj.甲基的
动词methylate过去式和过去分词形式
n.甲基；木精
n.亚甲基
n.聚乙烯
adj.二甲基的
n.乙烷
