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是什么意思_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在线翻译_英语_读音_用法_例句