Chinese President Xi Jinping delivers a keynote speech at the opening ceremony of the Boao Forum for Asia Annual Conference 2018 in Boao, south China's Hainan Province, April 10, 2018. (Xinhua/Li Xueren)

　　BOAO, Hainan, April 10 (Xinhua) -- Chinese President Xi Jinping started to deliver a keynote speech at the opening ceremony of the annual conference of the Boao Forum for Asia Tuesday morning.

　　The conference runs from April 8 to 11 in Boao, a town in south China's island province of Hainan, and is themed "An Open and Innovative Asia for a World of Greater Prosperity."