单词nonretractile
long-legged spotted cat of Africa and southwestern Asia having nonretractile claws; the swiftest mammal; can be trained to run down game.
非洲和亚洲西南部长腿带斑点的猫科动物，爪不能自由伸缩；最敏捷的哺乳动物；可训练用于追捕比赛。