a quick reply的用法和样例：
- I feel sorry for not giving you a quick reply.
- Can I get a quick reply from the sites? Yes, usually it takes a short time, but you have to await the choice of the units for a while.
- A reply, especially a quick, witty one; a retort.
- He had to make a quick change at Shanghai.
- It is imperative that we make a quick decision.
- The old man set off at a quick trot.