Normally the sinoatrial node generates regular electrical pulses that spread across the Chambers of the heart, causing the cells to contract in synchrony.
正常情况下，窦房结产生规律的电脉冲，传入各心房，再带动细胞同步收缩。
When the heart beats, an electrical signal passes from the top of the heart, near the atria (upper chambers), down through the ventricles (lower chambers), and the chambers contract in that order.
当心脏跳动时，一个电子信号就会从心脏的顶部传到一个心腔（位于上部），然后是位于下部的心腔，当它收缩时，也是按照这样的顺序。
Yet there is an unwritten contract at its heart: that the winners shall use some of their wealth to compensate the losers.
然而，它的核心却是一份不成文的契约：成功者要用他们的部分财富来给那些失意者以一定的补偿。
She entered heart and soul into the details of the business, advised and dissuaded; and finally a contract was drawn up.
她一心一意磋商这笔生意的巨细事宜，左劝说右劝阻，最后终算签定了合同。
The honesty and faith of chinese traditional family admonish is intrinsically heart honesty and faith, not contract.
在本质上，中国传统家训中的诚信是一种心性诚信，而非契约诚信。
But Jose Mourinho has had a change of heart after Gallas made it clear that he is prepared to sit out the final year of his contract in the reserves.
但是在加拉明确表示准备在预备队呆满自己剩下的一年合同时间后，何塞·莫里尼奥已改变主意。
The day before yesterday received notification Tengen electrical contracting, the heart happy about it, not because the contract itself, but a success, the joy of conquest.
前天收到天正电气的签约通知，心里高兴的一番，不是因为签约本身，而是一种成功、征服的喜悦。
The day before yesterday received notification Tengen electrical contracting, the heart happy about it, not because the contract itself, but a success, the joy of conquest.
前天收到天正电气的签约通知，心里高兴的一番，不是因为签约本身，而是一种成功、征服的喜悦。
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