آموزش اصطلاح congestion zone با اخبار تردد در مرکز لندن

Congestion /kənˈdʒɛstʃ (ə) n/ noun
The state of being very crowded when vehicles can’t move easily; Heavy traffic
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Congestion zone: An area in a big city where there is heavy traffic
Ex. The project aims to reduce traffic congestion