stiffness of cable

例句：

1. 1. The material is verystiffness when it's cold.
   这种材料在冷的时候非常硬。
2. 2. The chairwas too stiff for me to sit oncomfortably.
   这把椅子太硬了，我坐不舒服。
3. 3. The fabric has a highdegree of stiffness, which makes itdifficult to iron.
   这种布料的弹性很高，熨烫起来很困难。