Escalefter is a person who stands on the left side of a busy escalator, thus blocking those who would walk up or down. 

自动扶梯上人不少，但却有人站在扶梯左侧不动，堵住想疾行上下的人的去路。

People who stand to the left instead of standing to the right are like speed bumps, and they slow down the pedestrian flow through the stations. 

该站在扶梯右侧，却站在左侧的人就如同路上的“减速带”，减缓了地铁的通行量。

The number of trains missed due to escalefters is horrifyingly high and this tragic epidemic must be stopped. 

因为这些“扶梯堵路者”，很多人会错过地铁列车。这种可悲的“流行病”该改改了。