Be Assiduous in Your Work and Affectionate to Your Students and Extend Your Love to All Children--Speech Delivered at the Opening Session of the First National Conference of School Principals是什麼意思_Be Assiduous in Your Work and Affectionate to Your Students and Extend Your Love to All Children--Speech Delivered at the Opening Session of the First National Conference of School Principals在線翻譯_英語_讀音_用法_例句