This is the 3213th most frequent Chinese word.
公交
Public transportation.
公交 here refers to public transportation, specifically buses, utilized for daily commuting.
我每天乘坐公交去上班。
I take the bus to work every day.
公交 in this sentence represents the entire public transportation network available in the city, including buses.
城市的公交系统非常方便。
The city's public transit system is very convenient.
公交 indicates the public transportation options, emphasizing economic advantages.