draft engine

例句：

1. 1. The draft engine is responsible for creating the initial design of a product.
   草图引擎负责创建产品的初步设计。
2. 2.The engineer used the draft engine to refine the design before it was finalized.
   工程师使用草图引擎来完善设计，使其最终确定。
3. 3. The draft engine was crucial in the development process as it allowed for quick iterations and improvements.
   草图引擎在开发过程中至关重要，因为它允许快速迭代和改进。