none of one’s business: 不关某人的事
The things most people want to know about are usually none of their business.
人人想知道的事情,大抵是跟他们毫不相干的。
Who's that letter from?一It's none of your business。
那封信是打谁那儿来的?——跟你没相干。
yell at: 对…喊叫,吼叫
Did he yell at you today?
他今天冲你吼了么?
Would you yell at a client, denigrate him to others or call him at home at all hours?
你会对着客户大吼、当着别人的面诋毁他或是不分时候往他家打电话么?
behind one’s back: 在某人背后
Not being able to see the world behind one's back is pitiable.
看不见自己背后的世界,是十分可惜的。
adj. 感情的,情绪的