单词	tetramethyllead
释义	tetramethyllead noun tet·​ra·​meth·​yl·​lead ˌte-trə-ˌme-thəl-ˈled  : a volatile poisonous liquid Pb(CH3)4 used especially formerly as an antiknock agent Word History First Known Use 1964, in the meaning defined above
随便看	hvy HW hwaining hwan hwang HWL HWM hwy hwyl hwyls hy hy spy hy- hyacinth hyacinth bacteriosis hyacinth bean hyacinth blue hyacinth red hyacinth squill hyacinth violet hyacinthaceaes hyacinthian hyacinthine hyacinthoideses hyacinthoidesses

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