Meaning:

Very nervous or excited before doing something important such as giving a speech and taking a test.

If you have butterflies in your stomach, you are very nervous and/or excited about something you are going to do soon.

2. (a rising tide that) lifts all boats - something that helps all people or all groups
Example: "We're only number three, but the current economic growth will lift all boats, so we're sure to make a profit this year."

Some expressions that might be heard at business meetings.

I'm Susan Clark with the Special English program, WORDS AND THEIR STORIES.

(MUSIC)

A woman from Japan was telling a friend about her trip to the United States. The woman had visited major businesses and investment companies in New York City and Chicago.