| 单词 | methylene |
| 释义 | Word Frequency methylene(ˈmɛθɪˌliːn) noun (modifier) of, consisting of, or containing the divalent group of atoms =CH2 a methylene group or radical Word origin C19: from French méthylène, from Greek methu wine + hulē wood + -ene: originally referring to a substance distilled from wood |
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