When we feel excited or angry, our heart can send more blood to the face and the pigments in the skin become red.
当我们感到兴奋或生气时，我们的心脏会向面部输送更多的血液，皮肤中的色素就会变红。
When we feel excited or angry, our heart can send more blood to the face and the pigments in the skin become red.
当我们感到兴奋或生气时，我们的心脏会向面部输送更多的血液，皮肤中的色素就会变红。
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