quadruped

n. 四足兽

The part of the body of a human being or quadruped on either side of the backbone and between the ribs and hips.

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

A joint, as of a bird or quadruped, corresponding to the human elbow.

关节，肘部鸟或四肢动物的关节，相当于人的肘