91. Those urban planners who are blind to this point will pay a heavy price， which they cannot afford it
那些城市的规划者们如果忽视这一点，将会付出他们无法承受的代价
92. There is a growing tendency these days for many people who live in rural areas to come into and work in city. This problem has caused wide public concern in most cities all over the world
农民进城打工正成为增长的趋势，这一问题在世界上大部分城市已引起普遍关注
93. An investigation shows that many emigrants think that working at city provide them with not only a higher salary but also the oppo
