If we travel in big cities, it's very likely that we will come across traffic jams, which often make us complain(抱怨). But people in Bangkok, Thailand, have more to complain about.
This is because Bangkok has the worst evening rush hour traffic in the world, according to a GPS company in Europe. Each year, the company will work out a list of the world's m ost congested(拥堵的) cities. The results are based on statistics(数据) of 390 cities across the world. This year, Chinese cities Chongqing and Zhuhai are also on the list.
