They have made a killing on the deal.

他们在这笔交易中发了大财。

《柯林斯英汉双解大词典》

I made a killing in Las Vegas.

我在拉斯维加斯发了一笔横财。

youdao

They made a killing in real estate and retired.

他们做房地产发了大财后，就退休了。

youdao

If this was horse racing, I would have made a killing on the Superfecta.

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Lincoln luxury brand made a killing during the 1990s selling super-sized Navigator sport utility vehicles.

WSJ: Would You Drive This Car?

Before the subprime mortgage market collapsed, some top executives of mortgage and finance companies made a killing.

NPR: Lawmakers Grill Subprime Execs on Pay