对话文本
Susan: Bob, I baked cookies for you.
Bob: that was so nice of you, dear. You’ve got a heart of gold!
Susan: go ahead and pig out!
Bob: these are delicious!
Susan: I thought they might cheer you up. You’ve been on a bad mood lately.
Bob: I guess I have been a little on edge. But these cookies are just what the doctor ordered!
Nicole: do I smell cookies?
Susan: yes, Nicole. Help yourself.
Nicole: yum-yum. These are out of this world. You can go into business selling these!
Bob: you can call them Susan’s Scrumptious Cookies. You’d make a bundle.
Susan: good thinking!
Nicole: don’t forget to give me credit for the idea after you are rich and famous!
Susan: you know I always give credit where credit is due!
实战美国俚语
To cheer someone up: to make someone happy使高兴
The news cheered him up.
这消息使他高兴起来。

To give someone credit: to acknowledge someone’s contribution 受到表扬，赞扬，归功于

To give credit where credit is due: to give thanks or acknowledgement to the person who deserves it谁值得表扬就表扬谁，表扬(或赞扬)该表扬(或赞扬)的人

To go into business: to start a business 从事商业

Good thinking: good idea, smart planning 好见解

To have a heart of gold: to be very kind and giving有一颗金子般的心; 心地善良

Help yourself: serve yourself 请自便

To be in bad mood: unhappy, depressed; 心情不好

just what the doctor ordered: exactly what was needed正是大夫说的（对症下药）

to make a bundle: to make a lot of money 大捞一笔

to be on edge: nervous: irritable紧张不安；心烦意乱；恼怒

out of this world: delicious十全十美的，极优秀的；非凡的，妙到极点的；好得难以形容，好得不可思议

to pig out: to eat greedily; to stuff oneself贪婪地大吃；暴饮；贪吃，狼吞虎咽地吃，吃得多：
I only have a meal of bread, bananas and ice cream; do I pig out?
我一顿只吃面包、香蕉和冰淇淋；难道我还算吃得多么?