1·There were marks on his buttocks I hadn't seen before.
他的臀部有些我从没有见过的疤。
—— 《柯林斯英汉双解大词典》
2·You can do this with your calf muscles, thigh muscles (front and back), chest, abdomen, buttocks, shoulders and back.
你可以对你的小腿肌肉、大腿肌肉（前面和后面）、胸部、腹部、臀部、肩部和背部这么做。
1·Results: The incidence of TD was 26.78%. The predilection site is the tongue, lip and mouth, jaw, upper limb, lower limb, facial expression muscle, neck shoulder buttocks in turn.