go on a picnic 和go for a picnic那个对?

go on a picnic 和go for a picnic那个对? 哪一个对go for a picnic 还是go for picnic They go for a picnic. go for a picnic 翻译 Let us go out for a picnic on Sunday是什么意思 if we go for a picnic ____ on the weathe 提问句!快My family often go out for a picnic on sundays.对on sund ＿,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?