This was an important discovery, because by learning to cultivate the land, and care for animals, mankind would always have food steadily.
这是一项重要的发现，因为通过学习耕作土地，饲养动物，就可以有稳定的食物来源。
An unsought, unintended, and/or unexpected, but fortunate, discovery and/or learning experience that happens by accident.
并未刻意寻找的，并未提前期待的，可又是幸运的且意外发现（或学习经验）。
An unsought, unintended, and/or unexpected, but fortunate, discovery and/or learning experience that happens by accident.
并未刻意寻找的，并未提前期待的，可又是幸运的且意外发现（或学习经验）。
应用推荐