While population growth accounts for only a modest part of the growing demand for food, it can contribute to global warming, and long-term climate change can threaten agriculture.
人口的增长虽然只是食品需求增长的部分原因，但是人口增长所带来的全球变暖、长期气候变化等问题仍然给农业带来了巨大的威胁。
Population is the main of market. The change of population age structure will bring change of consuming demand and development trend.
人口是市场的主体，人口年龄结构的变动必然也会引起市场的消费需求和发展趋向的变化。
With the change of life style, the speeding up of life pace, and the increase of solitarily living population in modern society, the demand for "convenience" is increasing.
生活方式的改变，生活节奏的加快，独居人口的增多，导致人们对“方便”需求的不断增长。
With the change of life style, the speeding up of life pace, and the increase of solitarily living population in modern society, the demand for "convenience" is increasing.
生活方式的改变，生活节奏的加快，独居人口的增多，导致人们对“方便”需求的不断增长。
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