The principal is a very busy woman.

校长是个大忙人。

《牛津词典》

The principal knows all the students by name.

校长能叫出所有学生的姓名。

《牛津词典》

Everyone will be there, from the Principal down.

从校长下至每个人都将到场。

《牛津词典》

Many years ago,the principal of the local high school came to him to develop a theater program for the school.

VOA: special.2010.06.03

These sources preserve different traditions on the number and the nature of the plagues, as well as the principal actors in the drama: God, Moses, Aaron.

这些素材都保留了不同的风格,不同瘟疫的数量，内容,关于三个主角，上帝，摩西，主角的描述也不相同。

耶鲁公开课 - 旧约导论课程节选

that it could be blown out of proportion and misused by the principal or by third parties.

那么事态可能会扩大，安乐死的做法会被主要相关人员和第三方滥用。

对于安乐死的看法 - SpeakingMax英语口语达人

So Mom can use the 5% for a luxury cruise, then tap the principal for condo maintenance.

FORBES: Death, Taxes and Dice Rolling

The Securities and Exchange Commission (SEC) is one of the principal culprits in the financial panic of 2008.

FORBES: The Inept Financial Reform Bill

They would be paid the principal plus interest once the land had been carved into plots and sold.

FORBES: Pay Dirt