quick;fast;prompt;speedy;rapid;swift;expeditious 信件将尽量～发出。The letter will be sent with all possible expedition./作出～的反应make a prompt response/～采取措施（行动）take prompt(or speedy,expeditious)measures(or action)/～发展 rapid development (or progress);growth by leaps and bounds/～给予答复give a prompt reply/～取得成效produce speedy results