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。
You can do this with your calf muscles, thigh muscles (front and back), chest, abdomen, buttocks, shoulders and back.
他们注意到,每一只火烈鸟用脸摩擦尾羽,然后再将这种颜料抹在颈部,背部和胸部的羽毛上。
They noted that each bird rubbed its cheek against its preen gland and then onto its neck, back and breast feathers.
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