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纯粹自然状态的条件...是每个人对每个人的战争状态。
食品体系必须发展以满足不断增长的人口需求。
The key to performance is elegance, not battalions of special cases.
The important thing is that your teammates have to know you're pulling for them and you really want them to be successful.
The ocean's bounty is finite, but human ingenuity is not.
Wheat breeding should not only aim for high yield but also disease and stress resistance.