A 20-year action plan for cutting the rate of world population growth is expected to win wide approval today in Cairo.
一项旨在降低世界人口增长率的20年行动计划今天在开罗有望获得广泛认可。
World population growth is now declining after its annual peak of 2.2 percent in the early 1960s.
世界人口的增长率同60年代早期的顶峰相比(年度增长2.2%)已经下降了。
But when the new power from the use of tools has been exploited, the rate of world population growth fell and became almost stable.
但当工具的使用所产生的新动力被充分利用以后,世界人口增长率下降并且趋于稳定。
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