smiles"最长,因为两个S之间有一“mile"(一英里)长,所以最长得两个月以前我曾经贴过最长的英文单词是“pneumonoultramicroscopicsilicovolcanoconiosis [医]硅酸盐沉着病,矽肺病”是错误的 , 据疯狂英语2001,九月,第30期载: 最长的是1,913个字母, 是“色氨酸合成酶A蛋白质” (一种含有267种氨基酸酶)的全称---- 一般的字典上是见不着的。 (你可以翻翻医学专用词汇字典^_*) 单词如下: Methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalany lglutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenyla lanylvalylprolyphenylalanYlvalythreonylleucylglycylaspartylprolylglyc ylisoleucylglutamylglutaminylsErylleucyllysylisoleucylaspartylthreony lleucylIsoleucylglutamylalanylglycylalanylasparthlalanylleucylglutamy lleucylglycylisoleucylprolylphenylalanylseRylaspartylprolylleucylalan ylaspartylglycylpRolylthreOnylisoleucylglutaminylasPfraginylalanylthr eonylleucylarfinylalanylphenylalanylalanylalanylglycylvalythreonylpro lylalanylglutaminylcysteinylphenylalanylglutamylmethionylleucylalanyl leuOylisoleucylarginylglutaminyllysyhistidylprolylthreonylisoleucylpr olylisoleucylglycylleucylmethionyltyrosylalanylasparaginylleucylvalyl phenylalanylasparaginyllysyglycylisoleucylaspartylglutamylphenylalany lthrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylasparty lserylvalylleucylvalylalnylaspartylvalylprolylvalylglUtaminylglutamyl serylalanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginy lhistidylasparaginyvalylalanylprolylisoleucylprolylisoleucylphenylalan ylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylasp artylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryl tyrosylglycylarginylglycyltyrosylthreonyltyrOsylleucylleucylserylargin ylalanylglycylvalylthreonylglycylalanylglutamYlasparainylarginylalanyl alanylleucylprolylleucylasparaginylhistidylleucylValylalanyllysylleucy llysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylglutaminy lglgycylphenylalanylglycylisoleucylserylalanylprolylaspartylglutaminylv alyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanylglycylala nylisoleucylserylglycylserylalanylisoleucylvalyllysylisoIeucylisoleucyl glutamylglutaminylHistidylasparaginyliSoleucylglutamylprolylglutamyllys ylmethionylleucylalanylalanylleucyllysylvalylphenylalanylcalylglutaminy lprolylmethionlysylalanylalanylthreonylarginylserine