A staff member helps a doctor to carry out a B-scan ultrasound examination for a pregnant sea lion at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Aug. 2, 2016. (Xinhua/Wang Song)
Xinhua photo weekly choices (July 31-Aug. 7)
Source: Xinhua
2016-08-07 14:51:44
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