VOA常速英语:Small Electric Jolts Reset Heart Rhythm in Animals

短语讲解：

1. But a new study suggests normal heart rhythm can also be restored through a rapid series of safer smaller shocks.

a series of 一系列
例句：The post office will issue a series of new stamps.
邮局将要发行一套新邮票。

2. You've probably seen it on TV or in a movie: the patient goes into arrhythmia or her heart stops.

go into进入(某种状态)
例句：He went into a rage when he learned about it.
他听到这事后勃然大怒。

3. That's when the heart is beating very fast and at an unsteady pace, so it can't effectively push blood through the body.

push through (使)穿过
例句：The crowd in the station is so thick that I had to push through to reach my friend.
车站人群太拥挤, 我不得不使劲挤, 才能挤到朋友跟前。

4. "So pulse-by-pulse you transform the disordered, asynchronously-beating heart into something that's very synchronously beating, and then normal rhythm can take over," Luther says.

take over 接管; 接替
例句：She took over his work after his departure.
他离开以后, 她接替了他的工作。

5. After testing the theory on computer models, they demonstrated that it worked on laboratory animals.

work on致力于…
例句：He has been working on a new novel for over a year now.
近一年多来, 他一直在写一部新小说。

6. Devices that use the new LEAP method may not be available for years, until after the system is proved in human clinical trials.

be available for有效
例句：The passport is available for 5 years.
本护照5年有效。

7. Current defibrillators may be adapted to deliver a series of smaller shocks.

adapt to变得习惯于…, 使适应于, 能应付…
例句：I adapted quickly to the new climate.
我很快地适应了这种新的气候。