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Yesterday, my point of view was very clear, which may be implicit. I believe everyone's understanding ability. Today, I will make a simple picture to explain, indicating that the figures are only for reference!Clear point of viewClear point of view

Clear point of viewClear point of view

Clear point of viewYesterday, my point of view was very clear, which may be implicit. I believe everyone's understanding ability. Today, I will make a simple picture to explain, indicating that the figures are only for reference!