When a user triggers certain Ajax actions, your application must give an immediate visual cue to provide feedback to users so that they know that they actually clicked the mouse at the proper spot.
用户触发某个Ajax动作后,应用程序必须立刻给出直观的线索向用户反馈,以便他们知道是否点对了地方。
She'll give you thecue when you're to start.
到你开始的时候她会给你暗示的。
The horse should not move or pick up his foot until you give him thecue.