apostle

他成为教育改革的热情倡导者，在全国各地演讲。

He became an ___apostle for educational reform, giving speeches across the country.

他成为教育改革的热忱倡导者，积极推动课程创新。

He became an ___apostle of educational reform, passionately promoting curriculum innovation.

保罗虽然不是最初的十二门徒之一，但后来也被认为是耶稣的重要使徒。

Although not one of the original twelve, Paul is also recognized as a significant ___apostle of Jesus.