我们必须学会保存那些剩余的资源。
学会收割小麦之后不久，人们便发现用水和磨过的小麦混合可以做出面团，干燥之后能保存很久。
Soon after learning to harvest wheat, people found that they could mix water with ground wheat to form a paste that, when dried, could be stored for a very long time.
挺有感触的，所以就把它保存下来了，呵呵，希望自己可以学会与人交际的法则。
This is the conversation with a frieng, so it was preserved, ha ha, hope oneself can leam to communicate with others.
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