求翻译：One of the difficulties in carrying out a world-wide birth control program lies in the fact that official attitudes to population growth vary from country to country depending on the level of industrial development and the availability of food and raw materials. In the developing country where a vastly expanded population is pressing hard upon the limits of food, space and natural resources, it will be the first concern of government to place a limit on the birth-rate, whatever the consequence may be. In a highly industrialized society the problem may be more complex. A decreasing birth-rate may lead to unemployment because it results in a declining market for manufactured goods. When the pressure of population on housing declines, prices also declines and the building industry is weakened. Faced with considerations such as these, the government of a developed country may well prefer to see a slowly increasing population, rather than one which is stable of in decline.是什么意思？

待解决 悬赏分：1 - 离问题结束还有