In one sense you could say political philosophy is simply a branch or what we call a subfield of the field of political science. Yes all right.

从一个层面来看，你可以说,政治哲学简单来说，就是一个分支,或说次领域自政治科学,中分离出来，没错。

耶鲁公开课 - 政治哲学导论课程节选