然而，事实上全球人口增长速度在变缓。
Yet the growth in the world's population is actually slowing.
它将最终使人口增长速度放缓，并保持稳定。
It will eventually lead population growth to slow down and stabilise.
人口增长速度也逐渐变缓，甚至出现了人口负增长。
Natural Population growth has gradually become slow, and even the negative growth appeared.
这些国家人口增长速度快，因此食物需求量也越来越大。
They have rapidly growing population and the food demands are high.
这些国家人口增长速度快，因此食物需求量也越来越大。
They have rapidly growing population and the food demands are high.
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