high roller
US /ˈhaɪ ˈroʊlər/
UK /ˈhaɪ ˈroʊlər/

1.
豪賭客, 大亨
a person who gambles or spends large sums of money
:
•
The casino caters to high rollers with exclusive VIP rooms.
賭場為豪賭客提供專屬貴賓室。
•
He's known as a high roller in the business world, always making big investments.
他在商界被稱為大亨,總是進行大筆投資。