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Liu Xiang pulls out of 110m hurdles
BEIJING, Aug. 18 (Xinhua) -- Defending Olympic champion Liu Xiang pulled out of the men's 110m hurdles first round Monday morning at the Beijing Olympics.
In the last heat of the first round, Liu quit the race after a false start of Dutchman Marcel van der Westen. He limped off the track, obviously being troubled by a foot injury.
Liu's coach Sun Haiping said in a post-race press conference, "His right heel injury has been a long problem since six years ago, even before the Athens Olympics."
World record holder Dayron Robles of Cuba earlier breezed through to the next round, clocking 13.39 seconds.
参考答案：
刘翔退出110米栏预赛
（新华社）8月18日，北京——北京奥运会星期一上午进行的110米栏预赛中，卫冕冠军刘翔在第一轮比赛中退出。
因荷兰选手Marcel van der Westen抢跑，比赛重新进行。之后的热身中，刘翔在栏前跳了几下，明显受困于脚伤。后来，刘翔退出了首轮预赛。
刘翔的教练孙海平在赛后的新闻发布会中说：“自六年前起，他的右脚踝伤一直未好，比雅典奥运会还要早。”
世界纪录保持者古巴选手Dayron Robles早些时候在第二轮预赛中以13.39秒的成绩胜出。