The photo taken on April 23, 2009 shows sandstorm hitting Lanzhou city, northwest China's Gansu Province, April 23, 2009. [Xinhua]
![The photo taken on April 23, 2009 shows sandstorm hitting Lanzhou city, northwest China's Gansu Province, April 23, 2009. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090424/000bcdb95f1d0b5b754944.jpg "The photo taken on April 23, 2009 shows sandstorm hitting Lanzhou city, northwest China's Gansu Province, April 23, 2009. [Xinhua]")