[nòng qīng]
make clear; clarify; gain a clear idea of; understand fully; button down
find out the real situation
弄清情況
set the facts straight
弄清事實
clarify the facts
弄清事實真相
thrash out the rights and wrongs; distinguish right from wrong
弄清是非
We want to be quite clear on this point.
關于這一點，我們要完全弄清。
No conclusion should be drawn before all the facts are buttoned down.
所有事實弄清以前， 不應該下任何結論。