在世界地图板上放置图钉 Putting thumbtacks on a world map board

棋盘上有世界地图的图像，上面有许多图钉，可以近距离观察美洲大陆，而一个人'；他的手在美国又插了一个图钉。

Board with the image of the world map with many pushpins, seen closely focusing on the American continent, while a person's hand puts another pushpin in the USA.