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Before the US agrees to a withdrawal, it is demanding the Taliban put in place security guarantees, a cease-fire and other commitments.

Beijing issued a blue warning for dusty weather on early Wednesday, the first of its kind this year.

Because of long-term exposure to wind, rain and sun, the tower roof had deteriorated. It leaked during rainstorms and some of its ornamental work was peeling away.

Beijing resident Zhang Dai recently bought himself a gift symbolizing good luck for the Year of the Dog, which begins on Friday.

Because of coronavirus control measures, Liu spoke via webcam connected to the main event for International Museum Day, which was held in Jiangsu's Nanjing.