Translation of "Keen" in Chinese

The knife has a keen blade.

这把刀的刀锋很利。

She is keen on birds and flowers.

她对鸟类和花草很有研究。

Dogs have a keen sense of smell.

狗的嗅觉灵敏。

That young man is very keen on cycling.

那年轻人很喜欢骑自行车。

I was keen on classical music in my school days.

在我學生時代我癡迷於古典音樂。

- Dogs have a keen sense of smell.
- Dogs have a strong sense of smell.

狗的嗅觉灵敏。