Jill Biden is a professor at Northern Virginia Community College.

吉尔·拜登是北弗吉尼亚社区学院的教授。

The president of Northern Virginia Community College, Robert Templin, said it's difficult for schools to hit this moving target.

北弗吉尼亚社区学院校长罗伯特·坦普林表示学校很难命中这种移动的目标。