So, Freud believed there were five stages of personality development, and each is associated with a particular erogenous zone.

弗洛伊德认为人格发展,分为五个阶段，且每个阶段都与特定的动欲区有关。

耶鲁公开课 - 心理学导论课程节选

Some of you may know about Elisabeth Kubler-Ross' discussion of the so-called five stages of dying.

也许你们有人知道,伊丽莎白·库伯勒·罗斯,关于所谓的死亡五部曲的论述。

耶鲁公开课 - 死亡课程节选

I actually don't remember the five stages.

实际上我记不清这五个步骤。

耶鲁公开课 - 死亡课程节选