keen-edged的用法和樣例：
例句
用作形容詞 (adj.)
- Hunter rs keen eyes swept from left to right.
漢特尖銳的目光從左到右掃視了一下。 - Few countries have ever enjoyed an industrial revolution without first undergoing a revolution in agriculture, a point both Mr Gates and Mr Timmer are keen to stress.
蓋茨先生和提莫先生都尖銳的指出，很少有國家能在完成農業革命前很好的開展產業革命。
