Photo taken on April 17, 2019 shows the signs celebrating the 70th founding anniversary of the People's Liberation Army (PLA) Navy in Macao Road of Qingdao, east China's Shandong Province. April 23 is the 70th founding anniversary of the PLA Navy, and a commemorative event will be held in the eastern coastal city of Qingdao. (Xinhua/Li Ziheng)

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