接踵摩肩的英文：
[Literal Meaning]
touch/heel/rub/shoulder
shoulder to shoulder and heel to heel

[解释]
肩碰着肩，脚碰着脚。形容人多拥挤。

[Explanation]
to jostle each other in a crowd

[例子]
北京的中关村是个繁华的地方，人们接踵摩肩，忙碌地做着工作。

[Example]
The Zhongguancun of Beijing is a flourishing place and people there jostle each other in a crowd and are busy with their work.

[英文等价词]
cheek-to-jaw