an experienced teacher, Ms. Yu had observed for a few days. At noon, after class, she returned to her office and saw the exquisite and high-end lunch on Ms. An's desk. She chuckled and teased, "Ms. An..., but found that her sprained right foot wouldn't cooperate at all. 。Let me help you up. 。It's winter now, sitting on the ground is both unmannerly and will make you cold. 。"Sīkōng Liuyi said, unable...