So in a healthy heart, the upper chambers contract first, then shortly after the lower chambers contract.

因此在一个健康的心脏中，心房首先收缩，此后心室发生收缩。

As the head of the powerful upper chamber of Congress, the VP's main role is to break ties.

作为国会上院议长，副总统有很大权利，其主要职责是打破僵局。

U.S. Senator Rand Paul has become the first member of the upper chamber to test positive for the coronavirus.

美国参议员兰德·保罗成为参议院中首位冠状病毒检测呈阳性的议员。

The measure now goes to Parliament's upper chamber, the House of Lords, where we'll see a vote tomorrow.

该提案已移交英国上议院审批，明天将得知投票结果。

Meanwhile, Haiti Senate has named the speaker of the upper chamber, Joseph Lambert, as interim president, deepening the political crisis.

与此同时，海地参议院任命参议院议长约瑟夫·兰伯特为临时总统，进一步加深了该国的政治危机。

The Republican Party needs to retain just one of Georgia's seats to keep control of the upper chamber of congress.

共和党只需要保留佐治亚州的一个席位就可以保持对国会参议院的控制。

Harris was elected to federal office in 2016 when California voters selected her to succeed retiring Sen. Barbara Boxer in the upper chamber.

2016 年，加州选民选举哈里斯接替即将退休的参议员芭芭拉·博克瑟，她因此进入联邦政府任职。

And then it was sent to the upper chamber.

并送去上议院。

Atrial septal defect is a defect within the upper two chambers of the heart.

- 房间隔缺损是心脏上部两腔内的缺损。

That came as lawmakers in the House of Commons used Prime Minister Boris Johnson's majority to reject the amendments demanded by the upper chamber.

当时，下议院议员利用首相鲍里斯·约翰逊的多数党地位优势，否决了上议院提出的修正案。

On rare occasions, a sudden change in heart rhythm prevents the upper chambers of the heart from contracting normally.

在极少数情况下，心律的突然变化会阻止心脏上腔的正常收缩。

The gene caused the creation of an exact copy of the sino-atrial node in the heart's upper right chamber.

该基因导致心脏右上腔室中窦房结的精确副本的产生。

So basically, what happens is the bill now moves to the house - it goes now to the House of Lords. It's the upper chamber.

基本上来说，这项法案现在将交由英国上议院进行表决。

It's very common for everyone to have an early beat arising from the upper chambers of the heart called premature atrial contractions, or PACs, once in a while.

每个人的上心室偶尔都会出现早搏即房性早搏（PACs），这是非常常见的。

It lets in the wind and rain, and the snow, too, in the garret and upper chambers, in winter-time, but it never lets in the sunshine.

在冬天，它让风雨和雪进入阁楼和上层房间，但它永远不会让阳光进入。

So, if we simplify this heart a little bit, normally, the sinoatrial node or SA node sends an electrical signal that propagates out through the walls of the heart and contracts both upper chambers.

如果我们稍稍简化一下心脏，正常时，窦房结发放一次电信号，传遍心壁，且上腔室（心房）也收缩。

The upper chamber of the British parliament, the House of Lords, has behind the calls to give 16 and 17 year-old vote in a planned referendum on whether to remain in the European Union.

英国议会上院贵族院呼吁赋予16岁和17岁的欧洲人投票权，让他们在决定是否留在欧元区的全民公投中有权投票。

Then we would come to handsome marble stairways conducting right and left into upper chambers ranged above one another three or four stories high, floors, ceilings, and walls lavishly decorated with innumerable crystalline forms.

然后我们会来到漂亮的大理石楼梯，从右到左通向楼上的房间，这些房间一层又一层地高三四层楼，地板、天花板和墙壁上装饰着无数的水晶形状。

The local government passed into the hands of a governor and commission, appointed by the President and Senate, and a legislature—one house elected by popular vote and an upper chamber composed of the commission.

地方政府交给了由总统和参议院任命的州长和委员会，以及立法机构——一个由普选产生的众议院和一个由委员会组成的上议院。

Further than before from the inside story, he nonetheless remained a backroom boy in a sense, beavering away in the upper chamber and on official commissions to review such hard-to-sort subjects as electoral reform and social care for the elderly.

故事以往不曾有的是，他却在某种意义上一直处在幕后，为上议院和官方委员会辛勤的工作，回顾那些难以排序的事件（比如选举改革，或是老年人的社会福利）。