OK means all right or acceptable. It expresses agreement or approval.

OK的意思是好的或者可以接受，表示同意或赞成。

youdao

Father: Ok, all right.

父亲：那么，好吧！

youdao

OK, All right, so these are the thermodynamic quantities that you're familiar with already.

好，这些是你们已经，熟悉了的热力学量，让我们很快地。

youdao

OK, here we go, here we go, you see, I'm doing it down here, I can't see it, does that-- ah, I hear his sighs of relief, OK, good. There we go. Better. All right.

好，我们开始，大家可以看到，我在这里写这个程序，我看不见，这是不是-啊，我听到大家放松的叹气了，好，让我们开始吧，好多了，好。

麻省理工公开课 - 计算机科学及编程导论课程节选

OK, good. This might be our all-time high, 89% got this right. This is great.

好的，很好这可能是我们上课以来正确率最高的一次，89%，的同学都做对了，这太棒了。

麻省理工公开课 - 化学原理课程节选

Press one more time - Press one more time Ok.So we don't have--we don't All right. We are going to just leave these up.

再按一次Fa键,-再按一次Fa键,可还是没有,我们不管它了

耶鲁公开课 - 聆听音乐课程节选