北京时间8月9日电 在刚刚结束的伦敦奥运会跆拳道女子57公斤级预赛中，中国选手侯玉琢战胜美国选手，顺利晋级。

Beijing time on August 9 (Reuters) in London just the end of the Olympic Games women's taekwondo 57 kilograms in the heats，China's HouYuZhuo victory over American players，Smooth promotion。