They had no choice but to build the pipes above ground and then cover them with dirt.

他们别无选择，只能把管道建在地面上，然后用泥土覆盖。

youdao

They may be no less serious than traditional courses, but they certainly cover new academic ground.

这些课程可能不比传统的课程逊色，而它们的确涉及到了新的学术领域。

youdao

A complete list would be somewhat longer, but it would cover the same ground.

完整的清单更长，不过它起的作用是一样的。

youdao

Park officials said the mowing of bridleways would not only act as a clear way marker, but also act as breaks in the ground cover in the event of wildfires.

BBC: North York Moors park tracks given clearer markers

And I wish that we could just have a time machine and sort of vortex ourselves from place to place, but we are definitely going to cover the ground and get to Texas.

NPR: Tift Merritt Will 'See You On The Moon'

Okay, so JMA's newest pre-quake warning system doesn't cover as much ground as SMS alerts, but with only 10 to 20 seconds of available panic time before an earthquake hits, we'd probably be toppling over one another before we could even find our cellphone anyway.

ENGADGET: Japan Meteorological Agency develops earthquake warning system