be drawn/pulled/picked out of the/a hatif someone’s name is drawn out of a hat, they are chosen, for example as the winner of a competition, because their name is the first one that is taken out of a container containing the names of all the people involved 随机抽出 The first correct entry out of the hat on September 2nd will win a prize. 9月2日第一个被抽中并且答案正确者将赢得奖品。
→ be drawn/pulled/picked out of the/a hat at hat(4)