[Reference Answer] (1) Teachers' work is complicated. The object, content and process of teachers' labor are complex, and teachers' labor includes both physical labor and mental labor. Teachers' labor is not simple labor, but complex labor. (2) Teachers' work is creative. Different from workers' production, teachers' labor has a fixed technological process, which embodies teachers' creativity everywhere. Teachers are faced with "living people" who are constantly changing with the times and have rich personality differences, and need constant practice, summary and adjustment. (3) Teachers' labor is exemplary. Demonstration means that teachers' words and deeds, moral ability and academic attitude can all be examples for students to learn. Therefore, teachers must set an example and be a teacher. (4) Teachers' labor is long-term. Teachers have a heavy task and a long period of talent growth, which determines that teachers' labor is a long-term process, and the fruits of education's labor are also long-lasting. (5) Individuality of labor mode and collectivity of educational achievements. The education and teaching activities of the school are mainly completed through the individual labor of a teacher, but the results of the teacher's labor are mainly the results of the teacher's collective labor.