zenith absorption

例句：

1. 1.The absorption of sunlight by the leaves is crucial for photosynthesis.
   叶子对阳光的吸收对于光合作用至关重要。
2. 2.The absorption of carbon dioxide in the atmosphere is a major factor in global warming.
   大气中二氧化碳的吸收是全球变暖的主要原因之一。
3. 3. The absorption of light by the water molecules is what gives it its color and clarity.
   水分子吸收光的颜色和清晰度。