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Sustainability isn't a trend—it's our responsibility to the next generation.
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.
最大的荣耀不在于永不跌倒,而在于每次跌倒后都能站起来。
改变是好事。
世界是美丽的,但它有一种叫做人类的疾病。