The similarity is that both provide a way to cope with unknown elements and functions; the difference is that for future-proofing, the unknowns are in the XSLT namespace.

相似之处在于两者都提供一种方法来处理未知元素和函数，区别在于对于后验来说，未知的内容在XSLT名称空间中。

youdao

Somewhere there is a balance, though, with resveratrol contributing in some unknown way to suppress metabolites associated with cancer growth.

不过，因为白藜芦醇以某种未知的方式抑制了与肿瘤生长相关的代谢，也就出现了某种平衡。

youdao

Science involves confronting our "absolute stupidity." That kind of stupidity is an existential fact, inherent in our efforts to push our way into the unknown.

科学让我们直面自己的“绝对愚蠢”，这种愚蠢是存在的事实，先天存在于推动我们进入未知的努力之中。

youdao

Whether the Lumia 920 will make its way to Verizon is still unknown but it seems likely.

FORBES: Nokia Lumia 920 Adds Color To Mobile, But Only For AT&T Customers [Update: Nokia And Verizon Confirm Partnership]

As we have argued throughout, when you are facing the unknown, the only way to know anything for sure is to act.

FORBES: What Do You Do When You Have To Choose Between Love and Money?

Because the Mac team has always understood that really great design makes an object seem like a hitherto-unknown part of oneself, a new way to encounter and express yourself in the outside world.

FORBES: Happy Birthday, Mac!