哈佛大学经济学教授爱德华格雷泽指出，人们趋暖避寒：1月均温与人口增长有着密切的相互关系。
People are fleeing the cold: there is a strong correlation between the average temperature in January and population growth, notes Edward Glaeser, a professor of economics at Harvard University.
干暖河谷的特有区系成分和各级植物区系标志种均较好地反映本河谷区系演化的近代趋势及其独特性。
The endemic elements and the character elements are all the better to be reflect the evolutional tendency of tropical flora and the unique flora in these valleys.
对流层中低层的暖脊和地面均压场的维持是此次大雾形成的良好环流背景。
The warm high ridge at the middle and low troposphere and the lower pressure of the ground all provide the good circulation background of this heavy fog.
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