quick/quickly
作副词用的quick和quickly在词义上没有什么区别，quick多用于口语性习语，quickly多用于书面语。如：
Come as quick as you can!你尽快来吧！
It helps to make you get rich quick.它有助于你迅速致富。
He replied to my letter very quickly.他立即回复了我的信。
The last few weeks have gone quickly.最近的几周过得很快。