In recent years, large area power blackouts occurred in many cities at home and abroad and caused enormous damage to society.
近年来，国内外许多城市相继发生大面积停电事故，给社会造成了巨大的损失。
In recent years, large area power blackouts occurred in many cities at home and abroad and caused enormous damage to society.
近年来，国内外许多城市相继发生大面积停电事故，给社会造成了巨大的损失。
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