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 art.①one[不定冠词](非特指的)一个(支,只,张,架,台,本等):She has anapple and a pear.她有一个苹果和一个梨。②one kind of表示种类:A squarehas four sides.正方形有四条边。③any每个,任何一个:A bike has twowheels.(一辆)自行车有两个轮子。④(used whe......(本文共 254 字) [阅读本文] >>