it's fine with me,为什么不能用it's fine for me?

it's fine with me,为什么不能用it's fine for me? That's fine with me.为什么用介词with? It's up to you. That is fine with me.这句话是什么意思.求解.有达人没. It's a fine day.How about go fishing with me?哪里错了? It's fine day today.What about___(go) to the park with me That's fine with me求翻译 求翻译：If you are fine,then it's a sunny day for me. If you are fine, then it's a sunny day for me.翻译中文怎么说? It's fine today. It's fine weather for （a) walk? it's a fine day for( ) that's fine with me和that's