The increased pressure increases the resistance to blood flowing down the jugular veins, and insufficient valves may allow deoxygenated blood to push back up the neck.

（这不就是“挣挣挣。屎”么。。。）急速上升的压力增加了颈动脉血液回流的阻力，并且没有完全闭合的膜瓣使得木有氧气的静脉血返回了脖子。

youdao

But it will be different if someone pushes down on your shoulders. In this situation you do not push back up - you just absorb the push effortlessly into your posture.

但当有人从上而下推按你的肩膀时情况就不同了，这时你不需要顶抗，就会毫不费力吸收掉作用在身体上的力。

youdao

In the past decade, scientists have figured out how to push differentiated cells back up the hill and, perhaps even more surprising, directly from one valley to the next.

在过去的几十年里，科学家研究发现了将已分化的细胞推回山顶的方法，更令人惊奇的是，甚至有可能将细胞直接推入另一条峡谷。

youdao

We're going to stand up and push back and call on the Federal government to secure our borders."

VOA: standard.2010.05.08

But, then again, if the bulls can get a couple good headlines in a row, they might be able to create a stampede and push the indices back up.

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Yer hands reached the bottom and ye pressed and pressed to push yer feet back up and if a big boy caught yer feet and pulled ye out or else that was you and ye went right the way in the water.

NPR: Excerpt: 'Kieron Smith, boy'

Waking it back up requires the push of any button or the jiggle of the joystick.

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