你不知道未来会怎样,但你知道自己为何而来。
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.
Resource development must balance economic growth with environmental stewardship.
如果在一个游戏中,获胜变得过于重要,那么我们可以修改游戏规则以便从中获得更多乐趣。而修改规则本身就可以成为一个新的游戏。