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.
The best way to learn mathematics is to do mathematics.
就像太阳在落山前映射在河口上，有无数的亮点在闪闪发光。
为明天做的最好准备就是今天做到最好。
I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.
The future of dairy lies in sustainable practices and consumer-driven innovation.
嫉妒在今日是一种禁忌话题，但这个社会上最普遍的感受，便是嫉妒。嫉妒来自生而平等的精神。
The most dangerous kind of waste is the waste we do not recognize.