World's largest migration underway
chinadaily.com.cn | 2017-01-27 08:55
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Crew member Zou Xu (left) celebrates his birthday with colleagues in a dining car on a train heading from Ningbo, Zhejiang province, to Chengdu, Sichuan province, after a day's work on Jan 17, 2014. [WU FANG/CHINA DAILY]
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