单词	pyridine
释义	pyridine noun pyr·​i·​dine ˈpir-ə-ˌdēn  : a toxic water-soluble flammable liquid base C5H5N of pungent odor that is the parent of many naturally occurring organic compounds and is used as a solvent and as a denaturant for alcohol and in the manufacture of pharmaceuticals and waterproofing agents Word History Etymology pyr- + -ide + -ine entry 2 First Known Use 1851, in the meaning defined above Medical Definition pyridine noun pyr·​i·​dine ˈpir-ə-ˌdēn  : a toxic water-soluble flammable liquid base C5H5N of pungent odor that is the parent of many naturally occurring organic compounds and is used as a solvent and a denaturant for alcohol and in the manufacture of pharmaceuticals (as antiseptics and antihistamines) and waterproofing agents
随便看	falls in falls in with falls into falls off falls on her shoulders falls on one's face falls out falls short falls short (of) falls short of falls through falls to falls under falltime falluja fallujah Falmouth fals falsary hold out past hold over hold past hold promise hold responsible hold someone or something in high regard

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