Pupils clean dust covering on floor at their school after Mount Sinabung volcano spewing volcanic ash on Friday in Karo, North Sumatera, Indonesia, on April 7, 2018. (Xinhua/Alberth Damanik)
Mount Sinabung volcano spews volcanic ash in Indonesia
Source: Xinhua| 2018-04-07 16:05:37|Editor: Yurou
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