an historic event【問(wèn)】 an historic event,an historical phenomenon上面的短語(yǔ)取自Webster’s New Dictionaryof Synonyms (P.403)。教科書(shū)上一再?gòu)?qiáng)調(diào):以輔音開(kāi)頭的詞,使用不定冠詞時(shí)用a,如a history,a hotel; 以元音開(kāi)頭的詞,使用不定冠詞時(shí)用an,如an hour,an honou......(本文共 748 字) [閱讀本文] >>