prototype test of structure

例句：

1. 1.The prototype of the new car is still under development.
   这款新车的原型还在开发中。
2. 2.They used a prototype to test the new design.
   他们用一个原型来测试新设计。
3. 3. The prototype was so successful that it inspired other designers.
   这个原型非常成功，激励了其他设计师。