You actually get energy out of breaking it up, and forming two smaller nuclei that are actually a bit denser and they hold together better.

要获取能量，就要裂变铀核形成两个更小的核，这两个核的密度更大一点，也更容易结合。

Like a veil, like a thin mist, tiredness came over Siddhartha, slowly, getting a bit denser every day, a bit murkier every month, a bit heavier every year.

慢慢地笼罩着悉达多， 一天比一天浓一点， 一个月比一个月阴沉一点， 一年比一年重一点。