This move means the process will go back to the lower chamber.

这意味着该总统弹劾案将被众议院重新收回。

Premature ventricular contractions are early beats that arise from the lower chambers of the heart.

室性早搏是指从心脏下心室产生的早搏。

But what about the other bad beats, the premature contractions in the heart's lower chambers?

那么其它不良搏动，也就是心脏下室的早搏呢？

He said there were problems with the way the lower chamber voted to impeach Rousseff on April 17.

他表示，4月17日众议院投票的总统罗塞夫弹劾案存在问题。

That is reassuring. But what about the other bad beats, the premature contractions in the heart's lower chambers?

这就让人放心了。那其他有害心跳，发生在心脏下腔的期前收缩(室性期前收缩)呢?

So we could place exactly 1 cell in each lower chamber...

所以我们可以在每个下腔室中放置 1 个细胞. . . . . .

Then there's the other kind of irregular heartbeat: Premature ventricular contractions are early beats that arise from the lower chambers of the heart.

还有另一种不规则的心跳: 室性期前收缩是由心脏下腔(左右心室)引起的早期心跳。

The upper receiving chambers of the heart are the atria. The lower pumping chambers are the ventricles.

室间隔将两心室分开，房间隔将两心房分开。

Liberians enthusiastically turned out in large numbers on Tuesday to choose their president, as well as 73 representatives from the legislative's lower chamber and 15 senators.

周二，大批利比里亚人热情地投票选出了他们的总统，以及议会下院的73名代表和15名参议员。

The House of Lords backed off its demands for a series of changes, with peers bowing to the overwhelming support in the lower chamber and accepting the bill with no dissent.

上议院议员放弃了一系列更改要求，议员们压倒性地屈服于下议院，并无异议地接受了该法案。

Instead, blood flows into the atria under low pressure from the blood vessels and then passively drains through on its way to the lower two chambers, which are called the ventricles.

相反，血液在低压下从血管流入心房，然后在流向下两个室（称为心室）的过程中被动地排出。

The meat was good, the beds were bad. M. Coignard slept in the lower chamber, under the stairs, in the same feather bed with the host and his wife, and all three thought they would be suffocated.

肉很好，床很糟糕。库瓦尼亚尔先生睡在楼下的房间里，在楼梯下，和主人夫妇睡在一张羽毛床上，三个人都以为他们会被闷死。