rock bottom (某事的)最低點;(某人心情的)最低點
例:The public's trust in the government is at rock bottom.
大眾對政府的信任降至最低點。
After having a fight with my boyfriend, I was at rock bottom.
跟男友大吵一架後,我的心情跌至谷底。
Joe's life hit / reached rock bottom when his girlfriend broke up with him.
當女友跟他分手時,阿喬的生活經歷了一段低潮。