在不训练时，凯尔喜欢和格雷斯学院的同学们一起玩耍，他在学校里最喜欢的课程是历史和体育。
When he is not training, Kyle enjoys playing with his school friends at Grace Academy where his favourite subjects are History and PE.
宾夕法尼亚佩雷尔曼医学院睡眠和时间生物学主任大卫·丁格斯说，起得很早的人和长时间的夜猫子很难突然改变。
Very early risers and longtime night owls have a hard time ever changing, says David F. Dinges, chief of sleep and chronobiology at the University of Pennsylvania's Perelman School of Medicine.
伦敦国王学院的教授约翰 麦克格雷斯说，移植的皮肤组织没有血管，因此缺氧。
Professor John McGrath, from King's College London, says grafted skin tissue has no blood vessels and therefore no oxygen.
伦敦国王学院的教授约翰 麦克格雷斯说，移植的皮肤组织没有血管，因此缺氧。
Professor John McGrath, from King's College London, says grafted skin tissue has no blood vessels and therefore no oxygen.
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