One man drove his car tardily through the congested traffic flow, when he stopped at a red light and heard a knock by a shabby boy on the window to aks if he would like to buy flowers.
有一个人在拥挤的车流中开着车缓缓前进，在等红灯的时候，一个衣衫褴褛的小男孩敲着车窗问他要不要买花。
The situation, that various passenger flow, logistics and private car are increasing, makes urban traffic congested.
各种客流、物流、私家车的增多，使得城市交通变得越来越拥挤。
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