教研组

例句：

1. 1. The teaching staff is responsible for the daily operations of the school.
   教学人员负责学校的日常运营。
2. 2. The research group has made significant progress in recent years.
   这个研究小组近年来取得了显著进展。
3. 3. The teacher-student ratio in this school is very high, which may affect the quality of education.
   这所学校的师生比例非常高，这可能会影响教育的质量。