【China Daily】Man of the hour
By XING WENThe blue hour — that fleeting period just before sunrise when the sun lingers below the horizon, its scattered light painting the sky in deep cobalt — is 24-year-old Chinese swimmer Sun Jiajun's favorite time of day.That transitional magic, where darkness gives way to dawn, mirrors the defining moment of his career: the men's 4x100m medley relay final at the Paris Olympics last August....