Once you have a handle to the airport object, you create a new GMarker.

有了airport对象的一个句柄之后，创建一个新的GMarker。

youdao

That value is then used to create a GMarker widget that is added as an overlay on the map.

该值随后被用来创建 GMarker小部件，这个小部件作为覆盖图添加到地图上。

youdao

To turn this feature on, simply add the draggable flag to GMarker when it is instantiated.

要开启此特性，只需在被实例化时向GMarker添加draggable标志。

youdao