The function of the heart is to pump blood through the body.

心脏的功能就是把血液输往全身。

《牛津词典》

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。

youdao

Elevated hemoglobin levels thicken the blood, and the heart struggles to pump it around the body.

血红素水平提高后，血液变浓，心脏得费力地把它们泵向全身各处。

youdao

Seventy-eight-year-old Richard Stowe has a mechanical pump inside his chest that keeps blood flowing throughout his body.

VOA: standard.2010.01.27

The challenge will be to push the body to pump out these antibodies rather than the more specific ones aimed at the ever-changing portions of HIV.

CNN: Possible step toward AIDS vaccine development