heavy traffic

汉语翻译

例句：

1. He was late owing to/due to the very heavy traffic.
   他迟到是因为交通拥挤。
2. His lateness was due to the very heavy traffic on the motorway.
   他迟到是因高速公路上车辆过多所致。
3. Heavy traffic poses a problem in many old towns.
   交通拥挤是许多旧城镇的难题。
4. What heavy traffic!
   多拥挤的交通！
5. The heavy traffic crawled through the narrow tunnel.
   拥挤的车辆慢吞吞地穿过狭窄的隧道。