Lowering blood pressure back to the normal range can result in the greatest decrease in stroke risk.

将血压降至正常水平能极大减少发生中风的风险。

The reaction precedes in the direction that raises the pressure back to where it was before.

反应先于将压力升高到之前的方向。

As we learned, an increase in cardiac output causes an increased blood pressure, restoring blood pressure back to a normal level.

据我们了解，心输出量的增加会导致血压升高，从而使血压恢复到正常水平。

This creates a little bit of back pressure that popsicle, the tongue depressors up here, and that back pressure is relieved by these holes enough so that the penny spins.

- 这会对冰棒、压舌板产生一点背压，这些孔足以缓解背压，使便士旋转。