missionary
noun [ C ] uk/ˈmɪʃ.ən.ri/ us/ˈmɪʃ.er.i/
传教士
a person who has been sent to a foreign country to teach their religion to the people who live there
He did missionary work for the Presbyterian Church in Alaska. 他在阿拉斯加为基督教长老会做传教工作。