Google's map Maker service, for example, makes up for the lack of map data for much of the world by asking volunteers to provide it.
例如Google的地图制作服务通过志愿者提交数据来填补世界很多地方的数据缺失。
Google's map Maker service, for example, makes up for the lack of map data for much of the world by asking volunteers to provide it.
例如Google的地图制作服务通过志愿者提交数据来填补世界很多地方的数据缺失。
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