CNN news 2010-07-22 加文本
2010-07-22来源:和谐英语
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例句：An overpass bridged the highway.
立交桥跨越高速公路。
2.detect vt.察觉,发觉;侦查,探测;对…检波
例句：Scientists are trying to find a way to detect which breast abnormalities may develop into cancer.
科学家正努力寻找一种方法，来检测哪种胸部异物会发展成癌症。
3.undetermined adj.未确定的; 待定; 待定的
4.champion vt.保卫,拥护
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