vi.
赌博；打赌：
He lost his money gambling at cards.
他赌纸牌输掉了钱。
to gamble on the result of a race
对比赛结果打赌
冒险；投机；作大胆的假设：
He lost his fortune gambling on the stock exchange.
他因炒股票损失了他的财产。
I'll gamble on his honesty and lend him the money.
我相信他的诚实，借钱给了他。
vt.
赌输；赌掉