1. The highways between cities are often very busy during holidays.
城市之间的高速公路在节假日通常非常繁忙。

2. Many highways were built to improve transportation efficiency.
修建了许多公路以提高交通效率。

3. Driving on highways requires attention and safe speed control.
在高速公路上驾驶需要注意力和安全的速度控制。

4. The government is investing in new highways to support economic growth.
政府正在投资新建公路以促进经济发展。

A: How long does it take to travel between the two cities on highways?
A：在高速公路上两个城市之间要多久？

B: It takes about two hours if the highways are not congested.
B：如果高速公路不拥堵，大约需要两小时。

1) 连接城市或地区的主要交通道路系统

2) 用于高速车辆通行的公共道路网络

3) 国家或地区基础交通设施的重要组成部分

4) 常见于长途运输和跨区域出行

1. 公路；高速公路（通常指连接主要地区的道路系统）

e.g. The highways are well maintained in this country.
这个国家的高速公路维护良好。

noun

1. main roads designed for fast travel between cities and regions