People prepare to get on a tram in Hunnan New District of Shenyang, capital of Northeast 皇冠体育app's Liaoning province, Aug 15, 2013. The tram network in Hunnan New District, 皇冠体育app's first modern tram network, including four lines with the total length of 60 kilometers, began trial operation on Thursday and is expected to be put into official operation on Sept 15. [Photo/Xinhua]
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