true stiffness

例句：

1. 1. The new car has a true stiffness that makes it feel like a sports car.
   这辆新车具有真实的硬度，给人一种跑车的感觉。
2. 2. The material is known for its true stiffness and durability.
   这种材料以其真实硬度和耐用性而闻名。
3. 3. The construction of the bridge required a lot of true stiffness to withstand the weight of the vehicles.
   建造这座桥梁需要大量的真实硬度来承受车辆的重量。