shucker

例句：

1. 1.
   动物的
2. 1. The buttock muscle is responsible for supporting the weight of the body.
   臀部肌肉负责支撑身体的重量。
3. 2. She had a small buttock injury that required stitches.
   她有一个小的臀部伤口，需要缝针。
4. 3. The coccyx is the lowest part of the spine and is often injured during sports.
   尾椎是脊柱的最下端，在运动中经常受伤。