为什么是It's nice talking to you.而不是It's nice to talk to you.

为什么是It's nice talking to you.而不是It's nice to talk to you. It's nice ---(talk) to you It's been nice talking to you的意思 It's been nice talking to you.为什么用is不用has? It's nice to meet you It's nice of you to help It's nice to meet you finally It's nice of you to say It's nice to meet you again Nice ______ to you talking to talk It’s nice to meet you中的nice是什么意思 It's nice to