| 释义 |
red·out AHD[rĕdʹout'] D.J.[ˈredˌaʊt]K.K.[ˈrɛdˌaʊt]n.（名词）- A sudden reddening of the visual field accompanied by severe headache and caused by engorgement of the blood vessels of the head when a person is subjected to a negative force of gravity, as in stunt flying.红视：发生于人受到与地球重力相反的力的作用时，伴有强烈的头痛和由头部血管扩大引起的视觉突然变红，如在特技飞行中
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