Why is it so difficult to take that first step?

为什么迈出第一步如此困难？

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Why is it so difficult just to accept my own nature?

为什么接受自己的本色会是如此困难？

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Why is it so difficult for humans to become sovereign?

为什么人类要变得独立自主是如此困难呢？

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Now the question is "how does it expand" and "why is it so difficult for us to understand, accept, assimilate and live according to the fact that we can make a difference, if we understand that what we need to understand is how change happens.

问题是“它如何扩大“,以及为什么我们难以理解，我们能够做出改变这个事实,并接受，被同化以及据此生活，如果我们能了解我们需要理解的,是改变如何发生。

哈佛公开课 - 幸福课课程节选

Why is it difficult in some cases to produce a vaccine when we've been successful in so many others?

为什么某些疾病的疫苗很难研制,即使我们已经成功生产了很多种疫苗

耶鲁公开课 - 生物医学工程探索课程节选

Why is it so difficult to get people in government to have a sense of proportion?

FORBES: Banning the Great British Breakfast

Why is it so difficult for third party candidates to win an election?

CNN: Lesson plan: The electoral process

Why is it so difficult for men to be self-aware about this?

FORBES: Readers Say