雏形

例句：

1. 1. The scientist discovered the prototype of the new device.
   科学家发现了新装置的原型。
2. 2. The company's prototype model was a hit with customers.
   公司的原型模型大受客户欢迎。
3. 3. The prototype of the new car is expected to be released next year.
   新款车的原型预计将于明年发布。