butterflies in stomach可翻译成：忐忑不安，七上八下
关于这个短语的来源，据说是1943年比尔-加德纳描述他作为伞兵的第一次跳伞训练时使用的，这种感觉是由胃部在紧张或兴奋时发生的小痉挛引起的。
Wikipedia中提到：
Butterflies in the stomach is the physical sensation in humans of a "fluttery" feeling in the stomach, caused by a reduction of blood flow to the organ.
Butterflies in the stomach是人体的一种生理感觉，是由于胃里的血液流量减少引起的。
韦氏词典中提到：
To "have butterflies" or "have butterflies in your stomach" means you have a nervous feeling in your stomach. The expression can also be used with "get" as in "get butterflies."
“have butterflies”或“have butterflies in your stomach”意思是你的胃里有一种紧张的感觉。这个表达也可以和“get”一起使用，比如“get butterflies”。
- have butterflies (in your stomach)
- get butterflies(in your stomach)
- butterflies in your stomach
- Butterflies in my stomach
英文解释：
- to feel very nervous, usually about something you are going to do
- 对将要做的事情感到非常紧张
- a feeling of being very nervous or frightened about something
- 对某事感到非常紧张或害怕
例句：
- I'm meeting her parents tonight, and I have a bad case of butterflies in my stomach.
- 今晚要见她的父母，我心里七上八下的。
- As he squeezed my hand tightly, I got butterflies in my stomach.
- 他紧紧抓住我的手的时候，我好紧张。
- I know you have butterflies in your stomach but I'm sure you will do great.
- 我知道你很紧张，但我相信你会做得很好。
- I had terrible butterflies before I gave that talk in Venice.
- 在威尼斯演讲之前，我心里非常紧张。
- He had butterflies in his stomach as he walked out onto the stage for his dance performance.
- 当他走上舞台进行舞蹈表演时，心里七上八下的。
- He had butterflies in his stomach while waiting for the results of his exam.
- 在等待考试结果的时候，他心里七上八下。
- The bride had butterflies in her stomach as she got ready to walk down the aisle.
- 新娘在准备走向红毯时心里七上八下。
*aisle：走道，过道。.高铁或飞机选座时常用到这个词。
- Are You A Window Seat, A Middle Seat, Or An Aisle Seat?
- 你要靠窗的，中间的，还是过道的座位?
- I would like to have a window seat.
- 我要靠窗的座位。
拓展：
Social butterfly：交际花
A social butterfly is a slang term for a person who is socially dynamic, successful at networking, charismatic, and personally gregarious.
social butterfly是一个俚语，指的是社交活跃、善于交际、魅力非凡、喜欢社交的人。
结尾推荐一句 love quotes:
I still get butterflies. Every time I see your face.
每次我看到你的脸，我还是会感到紧张。
