作业帮What is light? 用英语解释光是什么?
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What is light? 用英语解释光是什么?
What is light? 用英语解释光是什么?
What is light? 用英语解释光是什么?
光是什么现在没有准确定义的吧
light is an energetic radiation particle which is in most cases visible.
这个，cobuild词典上的解释是：
1.the thing that lets you see things，and that comes from the sun， moon， lamps， fire，etc
2.the quality of light that there is in a particular place or at a particular time.
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这个，cobuild词典上的解释是：
1.the thing that lets you see things，and that comes from the sun， moon， lamps， fire，etc
2.the quality of light that there is in a particular place or at a particular time.
3.the light that you need in order to be able to do an activity.
4.the natural light that occurs during the daytime and that is produced by the sun.
牛津上面则有:
the natura agent that stimulates sight and makes things visible.
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