Larry和李华明天要考试，今天一起复习，但李华一直没法专心。她今天会学到两个常用语：zone out和now you're cooking with gas。

LL: So Reaganomics were the economic policies of US. President Ronald Reagan - Li Hua? Are you listening?

LH: (Pause) 嗯？发生什么事了？

LL: Li Hua! How can you zone out when your final is tomorrow?

LH: Zone out? 你在说什么啊, Larry?

LL: To zone out means to lose concentration and to not notice what's happening around you.

LH: 喔，你是说我分心吗？

LL: Yes. A 'zone' is an area. If you 'zone out', you mentally drift away from the place you are currently at, and go off into empty, dreamy space.

LH: 所以zone是指一个区域, zone out就是走神。

LL: Yup. So stop zoning out! We still have a lot of studying to do!

LH: 好吧。那你告诉我，什么是supply-side economics？

LL: Supply-side economics argues that economic growth can be most effectively created by lowering barriers for people to produce goods and services (supply) -

LH: 比如说降低所得税。

LL: Hey! Now you're cooking with gas!

LH: Cooking - cooking with what?