backer
n
1 person who gives (esp financial) support to another person, an undertaking, etc 贊助人; (尤指)資助人.
2 person who bets money on a horse, etc (賽馬等中的)下賭注者.
??? 情景例句
Good-bye.
再見。
Now, ladies and gentlemen, I'd be happy to answer any questions that you might have.