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Students wearing face masks arrive at a school in Colombo, Sri Lanka, on Nov. 8, 2021. Academic activities in grades 10, 11, 12 and 13 in all schools across Sri Lanka resumed from Monday. (Photo by Ajith Perera/Xinhua)
Sri Lanka resumes academic activities in grades 10-13 in all schools
新华网| 2021-11-09 08:24:04|Editor: huaxia
