The real challenge is not just building climate models, but interpreting what they tell us.
每个人都有不为世人所知的秘密悲伤;我们常常称一个人冷漠,其实他只是悲伤。
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.