They leap to their feet, clench fists and let out long screams, clawing at the ground and air.

他们跳起来，握紧拳头，发出长长的尖叫声，抓向地面或空中。

youdao

If it is displayed on such occasions, do not allow the flag to fall to the ground, but let it be carried high up in the air to form a feature of the ceremony.

如果在这种场合展示国旗，不要让国旗掉到地上，而是让它高高地悬在空中以构成仪式的特色。

youdao

It removes heat from the air outside or the ground below and uses it to supply heat to a building or its water supply.

它从外面的空气或下方的地面收集热量，并用此来供应建筑物或其供水所需的热量。

youdao

Engineers on the ground designed a way the astronauts could connect air-cleaning devices from the command module to the air system in the lunar module.

VOA: special.2009.07.22

Then he flung outward, feet first, with a swish, Kicking his way down through the air to the ground.

然后，纵身一跳，他两脚先伸出去，在空中乱踢乱舞，于是飕的一声，降落到地面。

耶鲁公开课 - 现代诗歌课程节选

When we have both our feet firmly on the ground, and when we are down to earth we do not have our noses in the air.

VOA: special.2009.03.08

The Seawolf submarine, the C-17 transport aircraft, several different air-to-ground and air-to-air missiles are in the cross-hairs.

CENTERFORSECURITYPOLICY: Center for Security Policy | FOR A CREDIBLE DEFENSE POSTURE IN THE FUTURE, INVEST IN THE B-2 TODAY

Passengers still can't perform multiple tasks simultaneously on their devices or stream video as smoothly as they can on the ground, but they can expect steady improvement in this area as the airlines and Internet service providers work together to improve ground-to-air service.

WSJ: Airlines Promise the Flying Experience Will Get Better

Targets selected by the United States since the air operation began Sunday have included air defense facilities, ground-to-air missile sites, and command and control facilities of Afghanistan's ruling Taliban and the al Qaeda terror network.

CNN: President notifies Congress about troop deployment