The single dot represents the current directory.

单点表示当前目录，双点表示父目录 — 当前目录上边紧临的目录。

youdao

The transmission beam, starting with a single dot (to represent the user), shows their ideas spreading out.

无线电波，始发于一个“点”(代表用户)，体现他们的理念在传播。

youdao

The point is now ready to plot. Instead of just plotting a single dot, this time try marking the spot with an X.

现在可以画点了，但是这一次不是简单地画一个点，而是要用 X 来标记。

youdao

The question is whether they can do this over a large area and be able to predict exactly the location of any single dot.

FORBES: Magazine Article

The VIO, installed on a user's desktop, displayed only a single red dot.

FORBES: Love Tech Goes Long Distance

By continuing the national program developed for model year 2012-2016 vehicles, EPA and DOT have designed a proposal that allows manufacturers to keep producing a single, national fleet of passenger cars and light trucks that satisfies all federal and California requirements, while ensuring that consumers enjoy a full range of vehicle choices.

WHITEHOUSE: Energy and Environment Latest News | The White House