naked-flame locomotive

例句：

1. 1.The naked-flame locomotive was the first to reach the top of the mountain.
   裸火机车是第一个到达山顶的。
2. 2.The naked-flame locomotive was a symbol of progress and innovation.
   裸火机车是进步和创新的象征。
3. 3.The naked-flame locomotive was a testament to the power of human ingenuity.
   裸火机车是人类智慧力量的见证。