1. Travelers returning from a long weekend from the south of Taiwan create a huge traffic jam on the outskirts of Taipei.2. When the accident occurred, traffic was backed up for miles as crews worked to clear the scene.
 traffic jam traffic congestion traffic is backed up塞車塞到不行 = traffic is backed up很嚴重的塞車(名詞) = a heavy traffic jam = a huge traffic jam
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