28. Going on a Diet 
  
Little Johnny is talking to his mother.
J: How come you always make me do things I don't want to?
M: What do you mean?
J: Well, for instance, you always force me to eat steaks, pork chops and chicken, day in and day out.
M: Ok. What do you want?
J: All I want is vegetables and fruit from now on.
M: What's wrong with you? Are you sick?
J: No, but I want to go on a diet.
M: Why?
J: Everyone's calling me Fatty at school.
M: Oh… I get it now.

be on business 出差
go on a picnic
go on a trip    be on a trip
I haven't seen John for a while. He is on the trip. He'll be back on the weekend.
What do you mean by asking me to tell you sentence?
enable
short-circuit
out of one's mind 精神不正常
what do you mean by this word? 这个字什么意思？
pork chop 猪排        chicken 鸡肉  chickens 活鸡
From now on, Peter will double my pay.
daydream 白日梦
helnet 头盔