Freud uses it as an explanation for why somebody might eat too much or chew gum or smoke.

弗洛伊德用口腔期人格,来解释为什么会有人暴饮暴食,嚼口香糖或是抽烟。

耶鲁公开课 - 心理学导论课程节选

But sometimes he would drink a lot and eat a lot because he just needed to relax.

但是有时候他也汹酒 暴饮暴食,因为他也需要放松

耶鲁公开课 - 欧洲文明课程节选