This stuff is also really easy to relearn, provided you have a really strong grounding in reasoning. Math reasoning -- we'll call it the application of math processes to the world around us -- this is hard to teach.
这东西也很容易重新学习， 只要你有一个关于推理，数学推理真正过硬 的基础。 我们将这称之为 我们周围世界里的数学程序应用。 这点是很难教授的。