adj.一针见血的；敏锐的
He gave a clear and incisive presentation of the matter. 他对整件事作出了一个清楚而又深刻的描述。
He had an incisive and agile mind. 他的思路犀利敏捷。
adv.敏锐地；激烈地
n.深刻；敏锐
