详细解释:n. 回流, 逆流, 反刍
【医】 回流, 反流, 反胃
英语解释：
名词 regurgitation:
backflow of blood through a defective heart valverecall after rote memorizationthe reflex act of ejecting the contents of the stomach through the mouth同义词：vomit, vomiting, emesis, disgorgement, puking