know that sth. is so but not why it is so; know what is done but not why it is done; know what happened, but not its whys and wherefores是什麼意思_know that sth. is so but not why it is so; know what is done but not why it is done; know what happened, but not its whys and wherefores在線翻譯_英語_讀音_用法_例句