In some parts of the world, however, mapmaking relies heavily on voluntary contributions.

然而世界的一些地方，制图工作却主要依靠数据的志愿捐献。

youdao

In some parts of the world, however, mapmaking relies heavily on voluntary contributions.

然而世界的一些地方，制图工作却主要依靠数据的志愿捐献。

youdao