come up 的意思是长出,上升,升职等；如：The snowdrops are just beginning to come up.雪花莲刚刚开始长出地面.
come about指的是发生.
如：how did this come about?这是怎么发生的?
所以是about,
I will let you know if anything comes __(up.about).选哪个,为什么?
I will let you know if anything comes __(up.about).选哪个,为什么?
英语人气：681 ℃时间：2020-03-28 08:54:04
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