principal

名词：

名词: principalship

更多词形：

副词: principally | 名词: principalship |

单词例句：

A stain of a contrasting color used to color the components in a microscopic specimen that are not made visible by the principal stain.

对比染色剂，对照染色剂一种对比颜色的染色剂，用来染制主染色剂染后显不出的显微术标本成分

The boys were angry because Ed thought fit to report the fight to the principal.

孩子们很生气，因为艾德认为有必要把打架的事情报告给校长。

The principal knew all the students individually.

校长认识每个学生。

The principal is busy at his desk, you'd better leave him alone.

校长正忙于桌上的工作，你最好别打扰他。

The Danube is one of the principal rivers of Europe.

多瑙河是欧洲的主要河流之一。

Our school gave a reception to our new principal.

我们学校为新校长举行了欢迎会。

John informed the principal against Paul.

约翰向校长告发了保罗。

Rubber is the country's principal export.

橡胶制品是该国主要的出口产品。

The principal reprimand the student for his chronic lateness.

校长斥责那个学生不该接二连三地迟到。