immediately也可以用作連詞(=as soon as),引導一個狀語從句
作連詞時意爲“一…就”。 
例句 :Yes, I have to leave immediately. 是的,我不得不立即離開。 
用法: immediately用於表示時間關係時,意思是“立刻”“馬上”,也可譯爲“不一會兒,過一會兒”。 immediately常與above, under, opposite, behind等連用,意爲“直接(上方)”。 immediately與after連用表示時間“緊接着”。 
如:If something happens immediately, it happens without any delay. 如果某件事立即發生,它會毫不拖延地發生。 
He immediately flung himself to the floor...他立即飛身撲到地上。
If something happens immediately, it happens without any delay. 如果某件事立即發生,它會毫不拖延地發生。