come up 和come about在做‘发生’之意的时候的区别come about用于抽象事物,come up用于具体事物,是这样的吗?

come up 和come about的区别 come up 和come about在做‘发生’之意的时候的区别come about用于抽象事物,come up用于具体事物,是这样的吗? 请问come about和come up的区别 come up/come about/come through/come out come up with和come up to take up 和 come up come up 和come about都表示发生时有什么区别?易懂 come up和come about都表示发生,有什么区别 译为发生的时候come up和come about有什么区别?能不能互换呢? come out 和come up的区别 come up和come 最好造句哦 come out;come up come out;come up come up come up come up come up come up