Reactor operators calculate how long it would take, once cooling is lost, for the spent fuel to boil the water it sits in.

反应堆操作员计算过燃料池使输入的冷却水沸腾（即冷却失效）需多少时间。

youdao

It takes a long time to learn how to NOT judge yourself through someone else's eyes, but once you do the world is yours for the taking.

我们需要很长时间才能学会，如何不通过他人的眼光来评价自己。然而你一旦学会，整个世界都在你手中。

youdao

Portugal and Spain are also looking to the horizon to gauge how long and challenging it will be for both to tap back into the bond markets once this all blows over.

FORBES: Spain, Portugal And A Virtuous Circle Of Bailouts