paramyosin

例句：

1. 1. Actin is a protein that helps muscles contract.
   肌动蛋白是一种帮助肌肉收缩的蛋白质。
2. 2. Myosin is another protein that helps muscles move.
   肌动蛋白是另一种帮助肌肉移动的蛋白质。
3. 3.The function of actin and myosin in muscle contraction is crucial for movement.
   肌动蛋白和肌动蛋白在肌肉收缩中的功能对于运动至关重要。