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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There was an appealing gravity to everything she said.

她说的一切都带有一种吸引人的严肃与庄重。

《柯林斯英汉双解大词典》

It caused the gravity to change.

它引起了重力的变化。

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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

Now, gravity, well force, is equal to mass times acceleration, g and the acceleration due to gravity is g.

是重力，等于质量乘以加速度，由重力导致的加速度是。

麻省理工公开课 - 热力学与动力学课程节选

And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.

焦耳的想法是,重力对水，做了功。

麻省理工公开课 - 热力学与动力学课程节选

As a result, "there's no center of gravity to be found in the Democratic party, " the source said.

CNN: Borger: Congress needs 'Boss Obama'

Scientists have subjected Albert Einstein's famous theory of gravity to its toughest real-world test so far and it has prevailed.

WSJ: Einstein Proved Right on Gravity��Again

Its aluminum body has an adjustable center of gravity to allow gamers to balance the mouse to their preference.

ENGADGET: Corsair unleashes second gen Vengeance gaming peripherals at CES, goes fully mechanical with K95 keyboard