a prize draw的用法和样例：
- Bradford University is luring students with the chance of winning an MP3 player in a prize draw.
- Win a car in our grand prize draw!
- They had set a prize of 2000 gns for the horserace.
- A prize of 50 is not to be sneezed at.
- If a couple finds that theirs match, they get raffle tickets for a prize drawing, but the main point of this gimmick is just to have fun and break the ice, organizers say.
- There was a prize for the best essay on Shakespeare in the city.
a prize draw的相关资料：