Describes a very crowded place or situation where people are standing extremely close to each other, with their toes almost touching the heels of those in front.
在大型展览会上，参观者络绎不绝，展厅里几乎是趾踵相接，人们寸步难行。
At the large exhibition, visitors kept coming in an endless stream; the hall was so crowded that people's toes touched others' heels, making it difficult to move an inch.
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