If you can learn and master these three parts, you can become a significantly better storyteller.

如果你能学会并且掌握这三个部分，你就会讲出很不错的故事。

And after that you've mastered that part. Okay?

在那之后你就掌握了那部分。 好的？

Chances are, you focus on part three, but the patients who receive the best care are those who master part one.

很有可能，您专注于第三部分，但获得最好护理的患者是那些掌握了第一部分的患者。

Whatever leisure time was allowed him, he spent in perusing it, though it was only with great difficulty that he could master any part of it.

只要有闲暇时间，他就会仔细阅读，尽管要掌握其中的任何部分都非常困难。