[wú lùn]
no matter what, how, etc.; regardless of
no matter what
无论什么
no matter who
无论谁
No matter what happened, he would not say a word.
无论出什么事, 他都会守口如瓶。
No matter when and how the invaders come, they will be wiped out clean.
无论侵略者什么时候来, 怎样来, 他们必将被消灭得一干二净。