自然课堂的集合与观察

提示词

依据给定活动点表现自然课堂，讲解者面向指定植物对象，学生在确认停留面集合，工具和人员不进入保留种植床。

Show an outdoor nature class at the supplied activity point, with a guide facing the designated plant subject and students in the confirmed gathering area, keeping people and tools outside retained beds.