a person who speaks publicly in support of a particular idea or plan of action
发音
例句
1. Stapp became a strong early proponent of automobile seat belts. 斯塔普是力主在汽车上采用座椅安全带的早期倡导者。 2. Halsey was identified as a leading proponent of the values of progressive education. 哈尔西被认为是进步教育价值观的主要支持者。