书的主干部分关于身体的姿势、动作和能量，这部分吴先生解释起来没有一点困难，导言部分基本是一篇关于形而上学的文章。
While the main body of the book was about postures and movements of the body and energy, which Mr. Wu had no trouble interpreting, the introduction was basically a treatise about metaphysics.
一篇新的大学报到说，观看其他人在视频中的动作会让人们觉得实际上是他们自己在做。
Watching a video of someone else performing an action can make people think they actually did it themselves, according to a new university report.
一篇发表在《神经学》上的研究报告发现，行走的简单动作能够提高老年期的记忆。
A study published in Neurology has found that the simple act of walking may improve memory in old age.
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