keenness
n. 锐利；尖锐；敏感
近义词：eagerness，enthusiasm，sarcasm，understanding，brain，ingenuity，aptitude，vigor，sharpness，acuteness，fondness，competitiveness，precision，intensity，iciness，bitterness，avidness，avidity，acuity，
英英释义
Noun
- a quick and penetrating intelligence;
"he argued with great acuteness" "I admired the keenness of his mind"
- a positive feeling of wanting to push ahead with something
- thinness of edge or fineness of point
例句
- The scabbard is content to be dull when it protects the keenness of the sword.刀鞘保护刀的锋利，它自己则满足于它的迟钝。
- The general's speech infused keenness into the men.将军的演讲给人们注入了激情。