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新托福阅读资料:游泳机器(原文+解析)

今天给大家分享一篇名为“SWIMMING MACHINES”的文章。后面有分析。 Tunas, mackerels, and billfishes (marlins, sailfishes, and swordfish) swim continuously. Feeding, courtship, reproduction, and even "rest" are carried out while in constant motion. As a result, practically ev...

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