ADJ [ADJ n]（行动）全力的，大举的 You use all-out to describe actions that are carried out in a very energetic and determined way, using all the resources available. （行动）全力的，大举的
He launched an all-out attack on his critics.
他全力抨击批评他的人。
...an all-out effort to bring the fire under control.
全力以赴控制火势
SYN total, full, complete, determined
All out is also an adverb.
We will be going all out to ensure it doesn't happen again.