探索未知世界

in the know───知情的；消息灵通的

Therefore Tree People would often become the guides upon expeditions into new regions that were unknown, or in navigating tribes from one place to another through the easiest possible route.───因此，树人经常会成为探险到新的未知地的导游，或者引导部落沿着最容易的可能路径从某地迁徙到另一地。

Newcomers needed help navigating the unknown world of capitalism, from opening a checking account to writing a resume.