methyl例句
However, thiomersal, the preservative in some vaccines, contains ethyl mercury not methyl mercury..然而，在某些疫苗中用作防腐剂的硫柳汞含乙基汞，并非含甲基汞。
methyl英语解释甲基, 木精英释中释nof, consisting of, or containing the monovalent group of atoms CH3
methyl短语和解释methyl methacrylate,甲基丙烯酸甲酯；异丁烯酸甲酯.短语
