求翻译：志愿者主要从所学专业为对外汉语、汉语言文学、外语、教育学、历史、哲学等文科专业的在职教师、在读研究生、本科以上应届毕业生中招募选拔，经培训合格后派出任教。志愿者任期一般为一年，任期届满履职考评结果良好以上者，如本人和接收机构提出续任要求，经国家汉办审批同意后可以续任。志愿者服务年限原则上不超过三年是什么意思？

Volunteers, mainly from the profession as a foreign language, Chinese language and literature, foreign languages, education, history, philosophy and other liberal arts in-service teachers, graduate, undergraduate recruiting graduates in the selection, the training of qualified sent to teach. Volunte

volunteers, mostly from majoring in foreign language, language and literature, foreign language, education, history, and philosophy, humanities, and professional in-service teachers in graduate school, college graduates over the recruitment, selection and training of qualified to serve as the subjec

The volunteer mainly from studies specialized for the foreign Chinese, Chinese language study, the foreign language, the pedagogy, the history, the philosophy and so on the liberal arts specialized in office teachers, in reads in the graduate student, the undergraduate course above graduating studen

Volunteers mainly from my field of study for foreign language, Chinese language and literature, foreign languages, education, history, philosophy and other arts teachers, graduate students, undergraduate college graduates in the recruitment and selection, dispatched after the training of qualified t