Most cities are anthropogenic sources of heat and pollution.
大多数城市都是人为的热和污染的源。
Scientists tell us that because of air pollution the earth's heat can't escape.
科学家告诉我们由于空气污染，地球的热力无法散出去。
Scientists tell us that because of air pollution, the earth's heat cannot escape.
科学家告诉我们由于空气污染，地球的热气无法散出去。
The green environmental protection without pollution, cold light source design, no heat radiation.
绿色环保无污染，冷光源设计，无热辐射。
The green environmental protection without pollution, cold light source design, no heat radiation.
绿色环保无污染，冷光源设计，无热辐射。
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