问题
I'd like to show admin labels for only one country on a map of Latin America. I'm new to CartoCSS and can't figure it out. I tried inspecting the labels and couldn't discern any hierarchy in the OSM ids that might help.
来源：https://stackoverflow.com/questions/30676224/show-admin-labels-for-only-one-country-via-cartocss-in-mapbox-studio