rock bottom 1. (物价、贫困等的)最低点，最低水平，最低限度 Prices touched something near rock bottom this year. 今年物价几乎达到了历年来的最低点。 His depression had reached rock bottom. 他已沮丧到无以复加的地步。 Their relations with China had been at rock bottom since 1950s. 自从20世纪50年代以来，他们和中国只保持着最低限度的关系。 2. 根本，本质；内心 All human beings are, at rock bottom, psychologically primitive. 从本质上说，所有的人在心理上都处于原始状态。