Having people laugh at you and not knowing why.

别人笑死你了。你却不明就里。

youdao

What came later was not remaining friends with Leonard and not knowing why.

后来和莱纳德不再算是朋友了，不知道为什么。

youdao

Once in the sedan chair he Sat. dejectedly, not knowing why it was considered a virtue to speak frankly.

上了轿子，闷闷不乐，不懂为什么说话坦白算是美德。

youdao

Whether or not the weather outside is frightful, knowing how and why airlines operate the way they do is a first step in minimizing the effects of travel calamity.

BBC: How to minimise the effect of travel disasters

And President Obama, being such a loyal native of Chicago and knowing what has happened there, why has he not since being President pushed anything on issues of gun control?

WHITEHOUSE: Press Briefing

The FDA should provide consumers with the timeline and all correspondence and phone records surrounding this case to show why a two month delay would take place from knowing the drug did not work to telling the public.

FORBES: A Drug Recall That Should Frighten Us All About The FDA