Be dead keen on sth.
非常喜爱
Be you keen on disco?
你喜爱迪斯科吗?
Tom was saying you might be keen on yoga.
汤姆说你可能爱好瑜伽功.
He rarely switches on to hear any of the classical music her professes to be so keen on.
他很少收听他声称感兴趣的古典音乐.
I'm keen on traveling.
我喜欢旅行.