First, if the AV node is receptive, it gets conducted down to the ventricles, resulting in a normal QRS complex.

首先，如果房室结接受它，它将向下传导到心室，形成一个正常的QRS波。

This situation is called a compensatory pause, which is defined as having a normal sinus complex landing exactly 2 times the normal sinus interval, which was 1 second, so 1 times 2 equals 2 seconds.

这种情况被称为代偿间歇，被定义为有一个正常的窦性复合波刚好持续正常窦性间歇（持续1秒）的两倍时间，所以一次室性期前收缩加上代偿间歇为两秒。