Investigations have ground to a standstill because no witnesses have come forward.

调查已陷入一种停滞状态，因为没有证人出来作证。

《柯林斯英汉双解大词典》

No, the Carrera GTS doesn’t have a lot of ground clearance, but it’s so low that most zombies you hit will go over the top of the car (especially if you keep your foot on the gas).

是的，Carrera 4 GTS离地不高，但它足够低以至于大多数僵尸都会被你撞飞到车顶（特别是你把油门踩到底的时候）。

youdao

Perminov also said Russia would like to station several ground based space communication facilities in Venezuela, but stressed that they would have no military application.

波米诺夫还说俄罗斯还希望在委内瑞拉建立数个陆基空间通信设施，但是他强调，这些设施与军事无关。

youdao

"They have gone through the past month or so of very hard effort to reach the point where they can begin to consolidate and control ground that they have won so, by no means this is over yet.

VOA: standard.2009.07.27

The Dragons have no training ground and use school fields to prepare for games.

BBC: Darren Edwards wants Dragons coaching role

Every minute we drag our feet is a minute that we have no inspectors on the ground at those Russian nuclear sites.

WHITEHOUSE: Weekly Address: National Security Over Politics on START

The soldiers on the ground here have no political role, and at the moment, there is an administrative vacuum on the streets of many of these northern, newly liberated areas.

CNN: Sadler: 'Administrative vacuum' in liberated north