headmaster

我们校长非常关心学生的发展。

Our ___headmaster is very concerned about the students' development.

我们的校长将在明天的集会上发表演讲。

Our ___headmaster will give a speech at tomorrow's assembly.

我们的校长将在明天的集会上发表重要讲话。

Our ___headmaster will give an important speech at tomorrow's assembly.