a necessary evil

釋義

1. 無法避免的壞事；不得已的事

   a thing that is bad or that you do not like but which you must accept for a particular reason

電影裡這樣說 · 3 部

• Necessary evils for the greater good.The Best of Enemies2019
• l'm necessary evil.The Dark Knight Rises2012
• ...unless you are prepared to do what is necessary to defeat evil.Batman Begins2005