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I did not have any idea about angular size. I was ignorant of the inverse square law for light propagation.
参考答案:我不知道角的大小,我不了解光传播的反射定律。
I did not have any idea about angular size. I was ignorant of the inverse square law for light propagation.
参考答案:我不知道角的大小,我不了解光传播的反射定律。