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词汇	circulatory system
释义	circulatory systemn.（名词）circulatory systemArteries (red) carry blood rich in oxygen from the heart to tissues of the body. Veins (blue) carry blood low in oxygen back to the heart. The system of structures, consisting of the heart, blood vessels, and lymphatics, by which blood and lymph are circulated throughout the body.循环系统：由心脏、血管和淋巴管组成的结构系统，血液和淋巴经其在体内循环
随便看	ethyl acetate ethyl alcohol ethylamine ethylate ethylated ethylates ethylating ethyl chloride ethylene ethylene glycol ethylenes ethyl ether ethyl mercaptan ethyls ethyne ethynes ethynylestradiol etic -etic etiolate etiolated etiolates etiolating etiologies etiology

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