unable to hold oneself back 迫不及待;

brook no delay 迫不及待；急不可待；刻不容缓;

too impatient to wait　迫不及待;

in haste　急速地，急忙地，草率地; 亟亟; 迫不及待

I'm too impatient to wait to see it.

我都有点迫不及待地想看了。

I would brook no further delay.

我不容许任何进一步的拖延。

He went off in great haste.

他匆匆离去。

He was impatient to get home.

他迫不及待想要回家。