你不知道别人告诉你的是真的还是假的。

You do not know whether what you're told is true or false.

《柯林斯英汉双解大词典》

他们可能都不知道别人是怎么想的。

They probably didn't even know what the others thought.

youdao

他不知道别人会怎么看待他。

He didn't know how people would react to him.

youdao

Specifically, what is it that American companies that, both then and now, still don't understand about China that you think you do and they don't?

美国公司对于中国的互联网行业，始终不甚了解,能否谈谈一些你知道而别人不知道的原因？

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And because of his reputation as a genius people said, "Wow. That's very profound. I wonder what he means."

因为他被传为天才，别人就会想，“多么深刻，不知道是什么意思呢”

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apart from Starbucks and Pete's, "I don't know, we made $300."

除了星巴克和彼得斯，别人都会说“我不知道，我们赚了300美元。“

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