米德尔塞克斯曾经是英格兰东南部的一个郡，现在属于大伦敦地区。

___Middlesex was once a county in southeast England, now part of Greater London.

他在米德尔塞克斯学院还不是大学的时候主修心理学。

He studied psychology when he was at ___Middlesex before it became a university.