Here, the server just checks to see if it knows about the user [and] password, and it's done.

这种情况下，服务器只查看其是否认识用户[和]密码，并且这样就行了。

youdao

If somebody thinks that nobody knows about a wicked deed, he is wrong; God always knows it.

如果有人认为没人知道他做了什么坏事，那他就错了；上帝总是知道的。

youdao

What difference will it make if he knows or not?

他知不知道有什么关系吗？

《牛津词典》

People really rely on hearing it from other people." ResearchGate developer Ijad Madisch says he knows his site will only prove valuable if scientists use it to help each other.

VOA: special.2011.04.28

We all have our version of trying to wrestle with this: if God knows what you're going to do tomorrow, to what extent does it make sense to say that what you do tomorrow you do freely?

我们都有自己试图解决这个问题的方式：,如果上帝压根儿就知道我们明天要做什么，那么，说着明天会自由的从事自己想做的事情,究竟又有什么意义呢？

耶鲁公开课 - 弥尔顿课程节选

Who knows if it will ever happen? But they have some awesome stuff.

谁知道这会不会实现呢？但他们有很多很棒的作品。

关于SOHO - SpeakingMax英语口语达人

No nation will make concessions if it knows the U.S. Congress is able to pass amendments that may undo U.S. concessions.

FORBES: Golden Times--Even If We Don't Know It

Such as sell your route data to advertisers and cut deals with the stop lights to get you there a bit faster? (if it knows that no one is coming, why wait?).

FORBES: Design Guru Bangle on Samsung, Sharing Objects, and Cars That Negotiate

That is the most it can achieve, he argues, and it "must now specify - if it knows at all - when, how, and to whom the heavy burden of controlling the situation will fall in its place".

BBC: Mali conflict: French 'fighting Islamists in Diabaly'