这些火山爆炸性极强，爆发瞬间出现了一道大裂缝。
These are volcanoes so explosive that they burst open in a single big crack.
超新星是一类剧烈爆炸的恒星，爆发之后它变得极为明亮。
Supernovas are a class of violently exploding stars that become super bright after eruption.
爆炸螺栓只能爆发一次，所以工程师们不能完全确定它们在关键时刻能正常工作。
Explosive bolts can only be fired once, so engineers can never be completely sure that they will work at the crucial moment.
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