单词	acid-fast
释义	acid-fast adjective ac·​id-fast ˈa-səd-ˌfast  : not easily decolorized by acids Word History First Known Use 1903, in the meaning defined above Medical Definition acid-fast adjective ˈas-əd-ˌfast  : not easily decolorized by acids (as when stained) —used especially of bacteria and tissues
随便看	Hewish hewlet hewn hewn to hewner hewnest hews hews (to) hews to hex hex mark hex sign hex- hexa hexa- hexabiose hexabromide hexacanth hexacanthous hexachlor- hexachloraphenes hexachlorethane hexachlorethanes hexachloro hexachloro-

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