rock bottom片語KK [rɑk ˋbɑtəm] /ɹɑk ˈbɑtəm/發音片語1谷底、低谷、人生最低點He hit rock bottom before finally asking for help.他跌到人生谷底,最後才開口求助。2最低點、最低水平Sales reached rock bottom in the second quarter.銷售額在第二季度降到了最低點。形容詞1最低的、最低限度的The store sells last season's coats at rock-bottom prices.這家店以最低價出售上一季的外套。