They were connecting up the story of underground activity which is America-wide.

他们连接了地下活动的故事，这是美国范围内。

youdao

Order replaced the old spontaneity, while speculation of the old sort became an entirely underground activity.

命令取代了古老的自发原则，而旧式的投机行为则完全成为了地下活动。

youdao

Carrying out the cost calculation of underground activity not only needs to set up and perfect the inner management system but also needs information system to back it up.

实施井下作业成本核算不仅需要建立和完善内部管理制度，还要有必要的信息系统予以支撑。

youdao

The criteria considered include population density, the distance to underground geological formations suitable for carbon sequestration, seismic activity, terrain, proximity to airports, military bases and so on and so forth.

FORBES: Plotting The Next-Generation U.S. Power Grid