According to a series of experiments published in the Quarterly Journal of Experimental Psychology by professors Gary Lupyan and Daniel Swignley, the act of using verbal clues to 27 trigger mental pictures helps people function quicker.
2017年6月六级真题（第二套）阅读 Section A
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
快的;迅速的;急速的
Someone or something that is quick moves or does things with great speed.
Quicker is sometimes used to mean 'at a greater speed', and quickest to mean 'at the greatest speed'. Quick is sometimes used to mean 'with great speed'. Some people consider this to be non-standard.