1、Their message to the people: Live in harmony or else. Mind your own business or else.
他們給人民傳達的信息是：要和諧，管好自己和身邊的人。

2、"You know, it would behoove you to mind your own business young lady," said the man.
“你要知道，小女生，不關你的事就不要管，”那個男人說。

3、I am sorry, I love Mind your own business should be learning a great deal of improvement now.
不好意思，我很愛管閑事學習應該有很大的進步吧。

Mind your own business翻譯