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 indef art [A is used before a consonant sound; an is used before a vowel sound.] 不定冠词[a 用于辅音音素前; an 用于元音音素前] ① one 一(个):a new book 一本新书/an old man一个老头儿 ② any one; each 任何一个;每个:A gun is dangerous. 枪是危险的。/......(本文共 789 字) [阅读本文] >>