I was so lucky to have some really great principals when I went to school.

我很幸运，上学的时候遇到了几个很好的校长。

Sixty percent of teachers are women, but a mere five percent of women are principals.

60％的教师是女性，但只有5％的女性是校长。

Support both user and service principals.

既支持用户主体又支持服务主体。

Principals and groups are types of entity.

主体和分组是实体的一种。

Where the owners or principals can't be identified?

无法确定所有人或负责人。

Principals are associated with the identity names.

主体是与身份名关联在一起的。