Profit should never come at the expense of the environment—especially in aquaculture.
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.
你读得越多,知道的东西就越多。你学得越多,去的地方就越多。
真正的发现者不是第一个偶然发现某物的人,而是发现其意义的人。