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。