explain的詞根詞綴

詞根是plain且詞綴是ex，中文意思是v. 解釋，說明說明（……的）原因，解釋（……的）理由

Don't explain for doing， fact has shown the all.不要爲所做所爲解釋，事實已經說明了一切。

When does your boss come to explain for it?你們老闆什麼時候才能出來解釋這一切