tā / yīn / wèi / yī / cì / zhì / yuàn / huó / dòng / yǔ / shān / qū / jiào / yù / jié / yuán / ， / jiān / chí / zhī / jiào / shí / nián

他因为一次志愿活动与山区教育结缘，坚持支教十年。

He formed ties with education in mountainous areas through a volunteer activity and persisted in teaching there for ten years.