We are now faced with a very important problem, that is, the rapid increasing pres sure of population on land, or rather, on land resources.Most people consider it a serious problem because land resources are limited.However, we need not to be pessimistic about it.

　　我们正面临着一个极为重要的问题，即人口快速增长对土地，或者说对土地资源所造成的压力。因为土地资源是有限的，所以大多数人都认识到了问题的严重性。但是，我们不必为此悲观。