They want to learn why they are so strong and elastic.

他们想知道它们为何如此坚硬和有弹性。

youdao

Why do we have to work so hard to learn Time Management, to master it?

我们为什么要如此努力地学习管理时间？ 是为了控制时间吗？

youdao

And when they do learn, why are some of those lessons so easily forgotten?

当他们真的吸取了教训，为什么有些教训是如此容易被忘记？

youdao

and you know like, "Why do you want to learn?" "So you can make money."

然后你可以问“为什么想学习？”，“可以赚钱”。

记忆深刻的研究 - SpeakingMax英语口语达人

Freelancing is likely to be their future anyhow, so why not start and learn the skills (from DIY bookkeeping to marketing) of being an entrepreneur now?

FORBES: Why Your Kid Can't Get a Job

So why, why, why did I have to learn to type on a typewriter?

FORBES: Nostalgia For the End of Typewriting? No Thanks.

Once you learn it seems so easy, you wondered why it seemed so hard before.

FORBES: A Badly Needed Catalyst to Manage Complexity