Yu Taihong and his students are seen at the No 10 Middle School in Kunming, capital of Southwest China's Yunnan province, Sept 7, 2017. The 73-year-old Yu Taihong started her career as a teacher in 1963. After retirement in 2000, she has been reemployed by the No 10 Middle School until now. "My biggest pleasure is to be with my students and I would not leave my platform as long as I can stand up," said the devoted teacher. The Teachers' Day is celebrated in China on Sept 10 every year. [Photo/Xinhua]