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高中高考中常见的用不定冠词an的单词anapple,anhour,anhonestboy,anhonor,anEnglishbook,anunusualman,anAmerican,anoldman,aneasyquestion,anisland,anegg,aneraser,anorange,aninterestingbook,anartist以元音字母开头但不以元音音素开头的单词aunitauseful/uselessthingauniversity,auniformausualtaskaunitedformaEuropeanaone-waytripaone-eyedman