单词	beg leave to retire,
释义	英華字典資料庫同義詞☞p.m.
随便看	monotypic genus monotypic species monotypic--unitypic monounsaturate monounsaturated monounsaturated fatty acid monovalence monovalency monovalent monovalent antibody monovalent cation monovalent chromosome monovalent chromosome-- univalent chromosome monovalent chromosome; univalent chromosome monovalent element monovalent element-- univalent element monovalent element; univalent element monovalent heat pump heating system monovalent ion monovalents monovalent serum monovalent (univalent) monovanadium disilicide monovariant system monovoline silkworm