一颗爆炸中之星体在数秒间释放出的能量，为什么好像是宇宙中所有其他恒星能量的总和？

How can an exploding star, for a few seconds, appear to emit nearly as much energy as all the other stars in the universe combined?

youdao

面带笑意、两眼放光，并且释放出与你和对方达成强烈共识而互相握手时所释放出的能量相同的能量。

Light up your eyes and smile, and give off that same special energy that usually accompanies the full-blown shake.

youdao

核裂变产生的能量极其巨大——相比同等质量的普通燃料如汽油等，核裂变材料释放出的能量要多出几百万倍。

Nuclear fission produces insane amounts of energy — we're talking several million times more energy than you'd get from a similar mass of a more everyday fuel like gasoline.

youdao

this happens spontaneously, you actually get energy out of the reaction as this happens.

这是自发的，当反应发生的时候,你会自发地放出能量。

麻省理工公开课 - 化学原理课程节选

So that's why we're giving off extra energy.

这也就是我们放出多余能量的原因。

麻省理工公开课 - 化学原理课程节选