14. Mind your own business!
你别多管闲事！
还能这样说：
It's none of your business.
Butt out!
应用解析：
business通常指生意，行业，表示为图利（常指为个人谋利）而做的工作；
commerce多指商品交易，特指国与国之间的商业往来。

15. She's not herself.
她有点不太对劲儿。
还能这样说：
She's not acting like herself.
She's not acting normally.
谚语：
It is a long lane has no turning.
否极泰来。

16. Can I bend your ear for a while?
我可以跟你谈一下吗？
还能这样说：
Can I talk with you?
Can I have a conversation with you?
应用解析：
bend on sth. 专心做某事；
bend before 屈服，顺从；
bend the rules 放宽规定，变通，通融；
bend one's mind to do sth. 专心于某事物；
on bended knees 跪下祈祷或卑躬屈膝地哀求

17. I'm really sorry to cause you so much trouble.
很抱歉，给你添麻烦了。
还能这样说：
I am so sorry to put so much trouble to you.
I feel regret to be a nuisance.
应用解析：
ask for trouble 找麻烦；
fish in troubled waters 浑水摸鱼，趁机取利；
get into trouble 惹上麻烦；
in trouble 处于困境中；
make trouble for sb. 制造麻烦，捣乱；
take the trouble to do sth. 不怕费事或困难尽力做某事

18. How was your holiday?
你的假期还好吧？
还能这样说：
How about your holiday?
What do you feel about your holiday?
应用解析：
on holiday 在度假，在休假中；
a busman's holiday 照常工作的假日；
high days and holidays 节日和假日