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。
2
Before the sun shall rise and set again, bring me his head that I may see it.
日落以前，把他的头拿来给我，我要看看。
3
Foetal alcohol syndrome, he says, "can give rise to children who are seriously damaged, born with head and facial abnormalities and mental disabilities".