Translation of "rump" into Chinese

Okay, how do I go about getting more of the rump steaks?

好 了 , 我 怎么 去 越来越 多 的 臀部 牛排

Apart from the magpie’s distinctive song, you can identify it by the white patches on its glossy back, rump, wings, and under the tail.

喜鹊除了有独特的歌声之外,你也可以凭着在它光滑的背部、尾部、翅膀和尾巴底部的白色斑纹将其辨认出来。