二者沒有什麼共同點啊:
come on
1、 跟着來
You'd better go now, and I'll come on later.
你最好現在就去,我隨後就來。
2、 進展
How are things coming on
情況怎麼樣?
3、 逐漸開始
Night is coming on.
夜幕徐徐降臨。
4、 上演
This play is coming on again next month.
這齣戲下月又要上演了。
come over
1、 從遠方(或克服障礙後)過來
They came over from the South to see me.
他們從南方遠道來看我。
2、 順便來訪
Come over any time I'm always in.
請隨便什麼時候來坐坐,我總在家。
3、 抓住
A fit of dizziness came over me.
我忽然感到一陣頭暈。