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source of heat/energy/light

双语例句

  1. Because the sun is our source of light, energy and heat, the changing intensity and concentration of its rays give rise to the seasons of winter, spring, summer and fall.
    因为太阳是光，能量和热的源头，太阳光照强度和密度的变化带来了春夏秋冬季节的改变。
  2. The sun gives off light and heat. It is the major source of energy for people living on earth.
    太阳发出光和热，这是地球上人们主要的能源。
  3. The sun can be said to be the source of nearly all energy, and in the absence of the sun's heat and light, no life could exist on earth.
    可以说太阳是所有能量的来源。因此，倘若没有太阳的光和热，地球上就不可能有生命。