People watch the rehearsal of an air show in Colombo, Sri Lanka, on Feb. 28, 2021. (Xinhua/Tang Lu)
Military helicopters perform during rehearsal of air show in Colombo, Sri Lanka
Source: Xinhua| 2021-03-01 08:26:52|Editor: huaxia
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People watch the rehearsal of an air show in Colombo, Sri Lanka, on Feb. 28, 2021. (Xinhua/Tang Lu)
