You can access the context directly by using a dot symbol.
可以使用点符号直接访问上下文。
The popular symbol of the Atom is stark: a black dot encircled by the hairline orbits of several other dots.
通行的原子标志是直白的：几个点循极细的轨道环绕着一个黑点。
Three common quantitative thematic maps are choropleth maps, dot maps and proportional symbol maps.
面量图、点子图及比例符号图中三种最常见的定量专题地图。
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