倡导者试图劝说或改变他人的观念使其相信某一特定项目，道理或原则的人，鼓吹者。
One who attempts to persuade or convert others to a particular program, doctrine, or set of principles, a propagandist.
计划的倡导者Art Campfield博士指出，该操作性研究的目的在于观察我们是否可以通过改变在小学阶段教授科学知识的方式来做出一些防御措施。
The goal of the operational research has been "to see if we can do some prevention by how we educate and teach science" at the elementary school level, said program advocate Art Campfield, PhD.
计划的倡导者Art Campfield博士指出，该操作性研究的目的在于观察我们是否可以通过改变在小学阶段教授科学知识的方式来做出一些防御措施。
The goal of the operational research has been "to see if we can do some prevention by how we educate and teach science" at the elementary school level, said program advocate Art Campfield, PhD.
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