flexible string

例句：

1. 1. The material is extremely flexible and can be easily molded.
   这种材料非常柔软，可以轻易地塑形。
2. 2. The rope is so flexible that it can be used to tie up small animals.
   这条绳子非常柔软，可以用来绑小动物。
3. 3. The car's suspension system is designed to be very flexible for better handling.
   汽车的悬挂系统设计得非常柔软，以提供更好的操控性能。