This is the 3840th most frequent Chinese word.
高速公路
Expressway; highway.
In this sentence, '高速公路' refers to the specific infrastructure designed for high-speed vehicular travel, commonly known as highways or expressways.
车辆在高速公路上行驶速度一般较快。
Vehicles usually travel at high speeds on the highway.
Here, '高速公路' emphasizes the network of roads and the significant infrastructure in the transportation system.
中国建设了许多连接大城市的高速公路。
China has built many highways that connect major cities.
In this usage, '高速公路' refers to a specific highway being used to achieve faster travel compared to other roads.