You've probably already scrubbed along the bottom of the progress bar to see if that happens, right?
你搞不好已经沿着时间轴拉看看那会不会发生了，对吧？
自我提升必备书单
Visual measurements can take many forms: diet journals, workout logs, download progress bars, or even page numbers in a book.
视觉测量可以有很多形式：饮食日记、锻炼日志、下载进度条，甚至是书中的页码。
英语百科
Progress bar
A progress bar is a graphical control element used to visualize the progression of an extended computer operation, such as a download, file transfer, or installation. Sometimes, the graphic is accompanied by a textual representation of the progress in a percent format.