quickness
美['kwɪknəs]
	    - n. 急速,迅速;尖锐化
 
英英释意
- 1. skillful performance or ability without difficulty;
 - "his quick adeptness was a product of good design"
 - "he was famous for his facility as an archer"
 
- 2. intelligence as revealed by an ability to give correct responses without delay
 
- 3. a rate that is rapid