I understand. 知道了。 See? 明白了吗? 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 know that too well. 我太清楚那种事了。 I see your point. 我明白你的意思。 I get it. 噢,我终于明白了。 I got it. 这样啊,原来是这么回事。 I know that much! 这点事儿我还是知道的。 That solves it. 原来是这样啊! All right, all right. I understand. 好吧,好吧,我知道了。 I know. 我知道呀! I know that person. 我认识那个人。 I know him by sight. 我见过他。 Yeah, I heard about it. 嗯,我听说了。 I hear you. 我听着呢。/我知道了。 I'm following you. 我理解了。 Makes sense. 言之有理。