adj (1)迅速(及时)的，准时的 (done， happening， etc as quickly as possible; punctual)： a～reply/action/decision 迅速的回答/行动/决定;～payment 准时付钱;a repair shop known for its～service 以提供迅捷服务而著称的修理厂;Thank you for your～attention to the matter. 谢谢你对此事及时的关心。〖同〗instant，immediate，quick，timely; 〖反〗slow，late;

(2)(指人)行动迅速(敏捷)的 ((of person) acting without delay)[A (in)， A+to-inf]： ～in one's duties 迅速完成自己的任务;He is very～in replying/answering my letter/arriving. 他作出答复/给我的回信/来得很迅速。～to obey/respond to our call for help/offer assistance 立即服从/对我们求助的电话作出反应/提供帮助;Policemen are trained to be～on the job. 警察经过训练后在工作上反应敏捷。men～to volunteer 立即自告奋勇的人;I'm surprised that she's late. She's usually very～. 她迟到我很吃惊，她通常是动作很迅速的。〖同〗ready;

→′promptitude n 迅速;敏捷;准时;′promptly adv 立即(迅速)地;准时(点)地;′promptness n 立即，迅速;准时，准点;

adv 正好 (exactly)： start at 8 o'clock～在整8点开始