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来源:雅诚德英语网
Blood vessels in the head tighten to stop the loss of body heat and then relax to let blood flow rise; that sudden rush of blood is what causes the headache.
头部的血管收紧以阻止身体热量的流失,然后放松让血液流动起来,血液的突然涌入是引起头痛的原因。
Blood vessels in the head tighten to stop the loss of body heat and then relax to let blood flow rise; that sudden rush of blood is what causes the headache.
头部的血管收紧以阻止身体热量的流失,然后放松让血液流动起来,血液的突然涌入是引起头痛的原因。