"Immediately" 立即, 即時, 立刻, 馬上 etc I'm trying to find a suitable translation for the word immediately. The dictionary has all of these words (I limited it to 4 in the title but there are over 10 results from what I can see). 

Could someone list the top 3 most commonly used ways to express the idea "immediately" and describe the differences between each?
without delay 即刻﹐馬上


將食物烹調十分鐘後即刻上桌。

我一收到他們的傳真﹐就馬上回信。


very soon before or after something 立即﹐立刻


那個嬰兒剛出生就立刻被別人領養了。


very near to something  緊靠著


他就住在緊靠我們家樓上的那個公寓。


immediately involved/concerned/affected etc -very closely involved etc in a particular situation 直接


這個決定將通知所有直接相關人員。