I know = 我知道
I see = 明白了
用法:
A君:He won't be coming with us. (他不会和我们一起去了)
B君:I know, he just told me. (我知道,他告诉我了)
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A君:He won't be coming with us, he has something to be done.(他不会和我们一起去了,他有事)
B君:I see, we'll ask him out next time. (明白了,下次再约他出去吧)
I know = 我知道
I see = 明白了
got it, 也是明白了的意思