人流量的英文：
visitors flowrate

The visitors are touched by the grandness of the monument.
游客们被纪念碑的雄伟所感动。

She introduced the visitors into the hall.
她把参观者引进大厅。

Visitors crowded the gallery.
参观者挤满了艺术馆。

They companioned the visitors to the opera.
他们陪着来宾到剧院去。

How to identify a visitor?
如何识别访客的身份？