go on a picnic与go for a picnic区别

They go for a picnic. go for a picnic 翻译 哪一个对go for a picnic 还是go for picnic go on a picnic 和go for a picnic那个对? Let us go out for a picnic on Sunday是什么意思 if we go for a picnic ____ on the weathe go on a picnic和have a picnic什么区别啊? ＿,we shall go on a picnic go for a picnic去郊游 go for a picnic的意思 Do you enjoy () for a picnic?(go) do you enjoy (go)for a picnic?