电视台正在播放一系列关于野生动物的纪录片。
The TV station is broadcasting a ___series of documentaries about wildlife.
我们队在这个系列赛中连续赢了三场。
Our team won three games in a row in this ___series.
我们正在阅读一系列关于气候变化的文章。
We are reading a ___series of articles about climate change.
这些电阻器串联连接以增加总电阻。
These resistors are connected in ___series to increase the total resistance.