Ject对"四足动物" 的正确翻译：quadruped。例句参考：腰部人类或四足动物的身体部分，位于脊柱两侧，肋骨与臀部之间 - The part of the body of a human being or quadruped on either side of the backbone and between the ribs and hips.；似骹骨狗或其它四足动物腿上的类似部位 - An analogous part of the leg of a dog or other quadruped.；相关词条：tetrapods；quadrupeds；