No amount of rationalization could justify his actions.
無論怎么解釋，他的行為都不能說是正當的。
A long list of reasons was trundled out to justify their demands.
他們重復了一大串理由來說明他們的要求正當。
No argument can justify a war.
沒有任何理由能證明一個戰爭有理。
You don't need to justify yourself to me.
你不必向我解釋你的理由。
It rests with management to justify their actions.
管理部門應當為他們的行動說出個道理來。