Usually, the larger an animal is, the slower its heartbeats, since it takes more time to pump blood around its body.

通常而言，体型越大的动物心跳越慢，因为将血液输送至全身需要花费更长的时间。

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When you train over a period of time your heart will grow in size, allowing it to pump a larger volume of blood with each stroke (or pump).

当你运动训练过一段时间以后，你的心脏体积将变大，每一次跳动(或撞击)可以输送更多的血。

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Every time I hear the last call before the show starts, I feel the adrenaline start to pump, probably like how a horse feels before it starts a race.

每当我听到表演开始之前的最后通报，就会觉得肾上腺素开始分泌，大概是像马在比赛开始之前的那种感觉吧。

youdao

You're taking the air inside of the pump and you're compressing it. You're doing it so fast that there's not enough time for heat to come out of the gas that's inside the pump towards the walls of the pump.

你把空气吸进气筒里并且压缩它,你的动作很快以至于,没有足够的时间让热量,从气筒里面跑出来,传递到气筒壁上。

麻省理工公开课 - 热力学与动力学课程节选

Breast milk isn't always given to infants in busy NICUs, where clinicians often focus on other medical issues and may not take time to arrange for mothers to pump milk.

WSJ: How Hospitals Save More Lives and Reduce Infections in Premature Babies

Panasonic also announced their 25GB and 50GB 2x discs which will hit the shelves starting April 28 just in time to prime the pump a bit.

ENGADGET: Panasonic LF-MB121JD Blu-ray drive ships June 10th for $850

In one pamphlet aimed at promoting breastfeeding, for example, the CDC encourages women to talk to their employers and demand breastfeeding support (time and a place to pump, for example, or hours that enable the woman to return home to breastfeed).

FORBES: Breastfeeding: A Case Study in Marketing