And a radioactive cloud spread over the entire European continent contaminating places as far away as the United Kingdom.

放射性云扩散到整个欧洲大陆，污染了远至英国的地方。

I have vivid memories of how the media reported on this event and how scary it was and how frightened everyone was of the radioactive clouds drifting from the Ukraine towards Europe.

媒体是如何报道这一事件，这一事件有多么可怕，以及每个人对于从乌克兰飘向欧洲的放射性云有多么害怕。

Within days, 4 reactors explode, releasing a highly radioactive cloud that is blown towards the Pacific Ocean, reaching the North American continent and then spreading throughout the northern hemisphere.

几天之内，4座反应堆相继爆炸， 释放出高放射性云团， 云团被吹向太平洋，到达北美大陆， 进而蔓延至整个北半球。