prototype strategic missile

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. The team used a prototype to test their new design.
   团队使用一个原型来测试他们的新设计。
3. 3.The prototype was so successful that it inspired the final product.
   这个原型非常成功，甚至影响了最终产品。