学习了解食物的不同阶段，并知道如何正确烹调它们。

Learn to know the different periods of foods and know how to cook them in the right way.

youdao

当我们观察一棵树的生命时，我们了解到生命的每一个阶段都有它自己的欢乐和挑战。

When we are looking at the life of a tree, we learn about that each period of life brings its own form of joy and challenge.

youdao

由于对农村居民的交通需求了解很少，因此第一阶段，即1985年12月到1987年12月，主要集中在调查研究上。

Little was known about the transport demands of the rural households, so Phase I, between December 1985 and December 1987, focused on research.

youdao

And the answer, presumably, is going to be, well it depends on getting clear on whether the stages are glued together in the right metaphysical way.

答案可能是，取决于我们了解,阶段是不是以正确的形而上方法,组合起来。

耶鲁公开课 - 死亡课程节选