Because, as it turns out, they are in fact mapping these nearly invisible underground fungi.

因为如结果证明的，事实上他们正在了解这些几乎看不见的地下真菌。

Peng Megut guards a treasure in a plastic notebook: For 15 years, Penan teams, together with cartographers from Switzerland's Bruno Manser Fund, have been mapping the territory of the indigenous people, a total of ten thousand square kilometers.

Peng Megut 在一个塑料笔记本里守护着一件珍宝：15年来，培南团队与来自瑞士布鲁诺曼瑟基金会(Bruno Manser Fund)的制图师一起，一直在测绘土著居民的领土，总共有1万平方公里。