A group of sympathetic academics has been drafted in by Lib Dem leaders to brainstorm.自由民主党领导人抽调了一批富有同情心的学者召开头脑风暴会。The children brainstorm ideas and decide that their main character will be the Big Brown Bear.孩子们通过头脑风暴交换想法，决定将他们的主角定为大棕熊。Brainstorming is a good way of generating ideas.头脑风暴是催生新点子的好办法。