congest
verb [ I,T ] uk/kənˈdʒest/ us/kənˈdʒest/
（使）充满，（使）挤满;（使）拥堵
to make something blocked or crowded in a way that causes difficulties, or to become blocked or crowded
There is no need for us to congest the city with traffic. 我们没有必要让城里的交通变得拥挤。
Synonyms: choke clog