比肩继踵（比肩繼踵）　

◎ 比肩继踵 bǐjiān-jìzhǒng

[cheek-to-jaw;be crowded closely together;crowd against one another;walk shoulder to shoulder and follow in the footsteps of one another] 肩并肩,脚尖接脚跟,形容人多拥挤

齐之 临淄三百闾,张袂成阴,挥汗成雨,比肩继踵而在,何为无人?——《晏子春秋·杂下》