at once
[ət'wʌns]
立刻, 马上
例句与用法：
The man was so genial, so I was drawn to him at once.
这人这么和蔼，我立刻为他着迷。
We agreed to leave at once.
我们同意立即离开。
Since she is seriously ill, we have to send for a doctor at once.
既然她病得厉害，我们要马上去请医生。
We determined to go to the railway station at once.
我们决定立刻去火车站。
It is necessary that he be sent there at once.
有必要马上派他到那里去。
When I gave him the chance, he grabbed it at once.
我给他这一机会，他立刻抓住不放。
If you see anything suspicious, inform the police at once.
你要是看到什么可疑的东西就马上通知警察。
He stopped playing the piano at once.
他立刻停止了弹钢琴。
马上; 立刻
Do it at once!
马上就做!