英语中表达“立刻，马上”这个意思的有哪些词或词组？

right now
in no time
as quickly as possible

right now
immediately
at once
right away

1 immediately
adv
立刻; 马上
2 at once
adv
立刻; 马上
3 right away
adv
立刻; 马上
4 at short notice
adv
一通知到就, 在短时间内, 立刻

5 directly
adv
立刻; 马上
I'll be there directly.
我马上就到。
6 forthwith
adv
立刻; 马上
Tell him to come forthwith.
叫他立刻来。

at once,
right now.

right now just just now in no time

right now