highway ferry

例句：

1. 1. The highway ferry is a popular mode of transportation between cities.
   高速公路渡轮是城市之间流行的交通工具。
2. 2.The highway ferry was the only way to cross the river during the war.
   在战争期间，高速公路渡轮是唯一过河的方式。
3. 3.The highway ferry was a symbol of progress and innovation in transportation.
   高速公路渡轮是交通运输进步和创新的象征。