Supernovas are a class of violently exploding stars that become super bright after eruption.
超新星是一类剧烈爆炸的恒星，爆发之后它变得极为明亮。
A bright bolt of lightning crackles within the ash cloud from the eruption of the eyjafjallajokull volcano in Iceland in April 2010.
2010年4月，一道明亮的闪电划过冰岛埃亚·菲亚·德拉冰盖冰川火山上空，穿透火山灰云。
A bright bolt of lightning crackles within the ash cloud from the eruption of the Eyjafjallajkull volcano in Iceland in April 2010.
2010年四月，冰岛的艾雅拉火山(eyjafjallajkull)伴随着火山灰云中晴天霹雳般的电闪雷鸣喷发了。
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