a big spender的用法和样例：
- She pegged him as a big spender.
- Ok.I will let you be a big spender next time.
- Gary is a big spender when he's on vacation.
- And he certainly was a big spender, yet that didn’t work either.
- But he is a big spender and has never saved a penny.
- Brown: Ok.I will let you be a big spender next time.