gravy train
US /ˈɡreɪ.vi treɪn/
UK /ˈɡreɪ.vi treɪn/

1.
顺风车, 轻松赚钱的机会
a situation in which someone can make a lot of money for very little effort
:
•
He got on the gravy train when he inherited his uncle's business.
他继承了叔叔的生意后,就搭上了顺风车。
•
Many people try to get on the gravy train of government contracts.
许多人试图搭上政府合同的顺风车。