Click one of the Placemarks in the map to display its pop-up balloon, as shown in Figure 4.

单击地图上的一个Placemark对象，这将显示一个弹出气球，如图4所示。

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To the left of the map, Figure 3 shows a list of all your Placemarks, with the and of KML document displayed above them.

在地图的左边部分，图3显示所有Placemark对象的列表，列表的上方是KML文档的和。

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The file may also contain one or more folders (used to organize shapes logically), and inside each folder are placemarks.

这个文件还可能包含一个或更多的文件夹(用来逻辑地组织各种形状)，并且在每个文件夹内是一些placemark。

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