incisive
adj. 深刻的；敏锐的；锋利的
例句
She picked up the gauntlet in her incisive keynote address to the conference.
她在其尖锐的大会主题发言中接受挑战。
《柯林斯英汉双解大词典》
He is a very shrewd operator with an incisive mind.
他是一位非常精明的经营者，有着敏锐的头脑。
Lee was at the hub of some incisive attacks in the second half.
李是下半场几次犀利进攻中的主角。
