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在生活中,公共汽车是人们出行的主要交通工具。公共汽车的车厢大小是固定的,但是不同的时间段乘客的人数却相差很大。在上、下班高峰
In life, buses are the main means of transport for people to travel. The size of the bus compartment is fixed, but the number of passengers varies considerably over time. On the rush hour