I can't go today.

I understand. 知道了 /I don't understand.

See? /Do you see? /Do you 明白吗？understand? /Do you get it? --I get it.

I understand very well.完全明白.

I think I understand. 我想我懂了.

I see what you mean. 我明白你说的了.

I understand what you mean.

That makes sense. /I get the point.

I know that too well.我太清楚那种事了.

I think we need to expand. 扩展

If you change this, it will work.

I see your point.我明白你的意思.

I get it. /I don't get it.

You see?

I got it. /I see. 这样啊/原来这么一回事.

I know that much! 我还是知道的

I left because I didn't feel well.

That solves it. 原来是这样啊!

Well, that solves that.

That's that. *比较随意的说法。

You have to change your attitude.

All right, all right. I understand.好吧.好吧.我知道了.

L.A. is in California.

I know. 我知道呀

I know that. /I know it. /I didn't know.

I know that person. 我知道那个人

I'm acquainted with that person.

Do you know that man?

No, but I know him by sight. 见过

（我见过他）