It was well-armed, with retractable claws on both its hands and its feet.
它的武器非常精良，两手和两脚上都有可以收缩的爪子。
Deinonychosaurs, such as the velociraptor, walked on two legs, ate meat and had vicious retractable claws.
“恐爪龙类”比如“伶盗龙”，用两条腿走路，食肉，有邪恶的可伸缩的爪。
Cheetahs, the champion sprinters of the animal kingdom, have non-retractable claws that give a similar advantage.
猎豹是动物中的短跑之王，它的脚爪是不能伸缩的，这给猎豹提供了类似的优势（译注：即和地面的接触面积更大）。
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