Without gravity to help circulate air, the carbon dioxide you exhale has a tendency to form an invisible cloud around your head.

如果没有重力帮助空气循环，你呼出的二氧化碳会在你头顶周围形成一个看不见的云状物。

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One thing that physiologists have learned is that without gravity our bodies begin to lose strength, leaving astronauts with weakened bones, muscles and cardiovascular systems.

生理学家发现，失去重力后身体会失去力量，这使得宇航员骨质疏松、肌肉松弛，心血管功能也相应退化。

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Without gravity, there would be no air or sound of any kind.

如果没有地心引力，就没有空气和任何声音。

youdao

It showed their instruments, food storage, and details of how they moved and worked without gravity to give them weight.

VOA: special.2009.07.15

Gravity is one force that acts on a body without the source of the force actually touching it.

引力是一种受力物体收到了力的作用,但却没有接触施力物体的力

耶鲁公开课 - 基础物理课程节选

Can you imagine ? Harvard vs. Yale football without the law of gravity?

你能想象哈佛和耶鲁,在没有万有引力的情况下进行橄榄球赛吗？

哈佛公开课 - 幸福课课程节选

Perhaps if we went on the space shuttle it would be--without gravity we'd be tall again.

NPR: A Conversation with Lynn and Vanessa Redgrave

Here, without the gravity effect, we can grow cells very purely and understand the mechanisms by which they are replicating.

WHITEHOUSE: President Obama's call to the International Space Station

D. student Roxana Leontie developed a program that would allow the robot to carry items without stable centers of gravity say, bottles of water or half-filled bags of pet kibble.

FORBES: Robots Are Learning To Take Care Of Pets