世界末日

Don’t get your knickers in a twist! It’s not the end of the world.

别烦恼了，这并界。

After Sputnik, megadeath would arrive in minutes by rocket, non-negotiably, and in such quantities that global annihilation looked on the cards.

杀伤规模之大甚至可以引发界。

Lensman. E.E. "Doc" Smith. Classic space opera with pure-as-Boy-Scout heros and unrelentingly evil bad guys fighting for control of planet-squishing "doomsday devices."

透镜人》（科幻）——E.E.·史密斯"博士"经典太空歌剧，讲述了男童子军般纯朴英雄和无情邪恶坏蛋为湿行星“界装置”控制而战斗。

Let him not quit his belief that a popgun is a popgun, though the ancient and honorable of the earth affirm it to be the crack of doom.

学者应该坚持自己信仰：气枪一响过啪一声而已，尽管那些年高者与位高者断定它界霹雳。