科研之友
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<正>After he ate his breakfast, Willie, the donkey2 had nothing to do. He ran quickly across his small grassland and rolled in the dirt."Ah-choo!"The dirt made Willie sneeze3. He looked around for something better to do.在吃完了自己的早餐以后,一只名叫威利的驴无事可做。它疾驰过小小的草
