I think it's a fine day for a walk.为什么是for,请具体说明原因.（不要翻译）

It's a fine day for …… (walk)today 求解释为什么是walking? It's fine weather for （a) walk? A:It is a fine day for a walk.B: it's a fine day for( ) It's a fine day for ______.let's go out ,shall we?A,to walk; It's a fine day for fishing（同义句） It's a fine day for a ______ day. yesterday,we went out for a walk sa a fine day it was a fine i think it's a secret for chinese 怎么翻译 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? What a fine day today!Let's go ( ).A.walk B.walks C.for a wa