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实义do do作实义动词时，有do, does, did, done, doing五种形式，还有及物、不及物之分。如： 1. vt. "做;研究;整理;完成"。如： ①The old man does an hour of sport every day. ②She did her homework at home last night. ③Mother was doing the cooking when I reached home. ④Have you done the exercises yet? (责任编辑：admin) |