school visitor

例句：

1. 1. The school has a policy of allowing visitors to observe classes in the morning.
   学校有政策允许访客在上午观察课程。
2. 2.The school visitor was impressed by the students' enthusiasm for learning.
   学校参观者对学生们的学习热情印象深刻。
3. 3. As a school visitor, I was given an opportunity to interact with the teachers and students.
   作为学校参观者，我有机会与教师和学生互动。