musculus

例句：

1. 1.The horse's musculature is incredibly strong.
   这匹马的肌肉非常强壮。
2. 2.The weightlifter is training for the Olympics with a focus on improving his musculature.
   举重运动员正在为奥运会训练，专注于提高他的肌肉力量。
3. 3.The marathon runner's musculature is well-toned and developed.
   马拉松跑者的肌肉线条分明且发达。