The model is based on the interactions of a hypothetical population of buyers and sellers.
本模式基于买卖双方之间的相互作用之上。
The American population is put into context with a hypothetical population of 1, 000. For example, if America was a population of 1, 000 people, 125 of them would make less than $10, 000.
也就是说如果美国民众数量是1000，他们中的125个将会赚的少于10000美元。
This paper deduces a theoretical population model in a urban system under a hypothetical condition of zero population growth (ZPG), and analyses the population dynamics for the model.
本文推演了城市系统中在人口零增长假设条件下的人口迁移理论模型；
But setting aside that hypothetical, the sheer size of China's population and the explosive growth of its economy are creating significant environmental pressures.
但是让我们把这个假设放到一边，仅仅中国的人口数量和经济的飞速发展就已经给环境带来了重大的压力。
But setting aside that hypothetical, the sheer size of China's population and the explosive growth of its economy are creating significant environmental pressures.
但是让我们把这个假设放到一边，仅仅中国的人口数量和经济的飞速发展就已经给环境带来了重大的压力。
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