to bring back swallowed food into the mouth

Owls regurgitate partly digested food to feed their young. 猫头鹰将半消化的食物吐出来喂幼鸟。

If you regurgitate facts, you just repeat what you have heard without thinking about it.

Many students simply regurgitate what they hear in lectures. 很多学生只会鹦鹉学舌般地重复从课堂上听来的东西。