And so we have an expression in English - 'to be rolling in it'. It means to be extremely rich.

所以英文中有这样一个表达方式——“财源滚滚”。这个短语的意思是极其有钱。

Sounds like you're rolling in it.

看样子你的生意做得不错啊。

So to say that someone is 'rolling in it' is another informal way of saying that someone's got heaps of cash, you know, they're loaded, they're rolling in it.

所以说有人“财源滚滚”是另一种非正式的说法，说某人有一堆钱，他们富得流油，他们可以在钱里打滚了。