Trying to make the matter clearer, he said: "Now, students, if I stood on my head the blood, as you know, would run into it, and I should turn red in the face."

为了解释得清楚起见，他说：“同学们，如果我现在头朝下脚朝上，倒过来站，你们都知道，血液会涌到我的头部，我的脸会变红。”

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Trying to make the matter clearer, he said:"Now class, if I stood on my head, the blood as you know, would run into it and I should turn red in the face."

为了让这个概念更通俗易懂。他说：同学们，如果我现在倒立的话，血就会向我的头部流去，这时我的脸就会变红，对吧？

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