n.the whys and wherefores 理由；原因
Communists must always go into the whys and wherefores of anything. 共产党对任何事情都要问一个为什么。
The new clerk takes too long over his work because he goes into the whys and wherefores of everything. 这个新职员做工作花费的时间太长，因为他对每件事都要问个为什么。
I don't need to hear all the whys and the wherefores, I just want to know what happened. 我无需听那些大道理,我只想知道是怎么了。
Tell me all the whys and wherefores. 把所有的理由和原因都告诉我
