Dolphins performs under the instruction of trainers at Qujiang Polar Ocean Park in Xi'an, capital of northwest China's Shaanxi Province, Aug. 2, 2017. (Xinhua/Shao Rui)
In pics: dolphin training in NW China's Shaanxi
Source: Xinhua| 2017-08-02 22:24:07|Editor: Liangyu
KEY WORDS: dolphin
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