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Dusan Lajovic of Serbia serves during the quaterfinals against Aljaz Bedene of Slovenia at 2019 ATP Croatia Open in Umag, Croatia, on July 19, 2019. Lajovic won 2-1. (Xinhua/Igor Kralj)
 
 
Dusan Lajovic of Serbia serves during the quaterfinals against Aljaz Bedene of Slovenia at 2019 ATP Croatia Open in Umag, Croatia, on July 19, 2019. Lajovic won 2-1. (Xinhua/Igor Kralj)
 
    
Summer scenery at Maoshan village in Huairou District of Beijing
 
    
Two giant pandas give birth to two pairs of twins at zoo in Chongqing
 
    
Scenery along highway linking Lhasa with Nyingchi in southwest China's Tibet
 
    
Palace Museum launches digital products to transform cultural heritages into digital resources