sounding board 1. (设在讲台、乐队上方或背后以增加音响效果的)传声结构(如穹形天顶等) 2. 宣传媒介(或机制)；宣传家 The convention is expected to be the sounding board for bitter recriminations. 这次大会预计将成为人们发泄牢骚和怨言的讲坛。 use the letter page of the newspaper as a sounding board 利用报纸的读者来信版宣传自己的主张 3. 被征询的人(指能在其身上探测得某一观点、意见是否可行者) The President uses his foreign affairs assistant as a sounding board and adviser for domestic decisions too. 总统把他的外交事务助理也当作是国内问题决策的咨询人和顾问。 4. = soundboard 5. 隔声板