Chinese student Ting Kuan Zhao, wearing a face mask to fight against the spread of the coronavirus, works out his performance during a class at the Superior School of Circus (ESAC) in Brussels, Wednesday, Sept. 23, 2020. The ropes are swinging. Chalk stains the mats anew, and students at the Brussels ESAC international circus school are smiling again, even if sometimes through a mask. The pandemic forced the school to close in March, but with new measures imposed to limit exposure the smell of sweat and the grunts of exertion are back again. (AP Photo/Francisco Seco), APTOPIX