I was glad to awake from such a nightmare.

庆幸终于从噩梦中醒。

I had nightmares after watching the horror movie.

看完这部怖片后做许多噩梦。

I had a nightmare about being drowned in a lake.

做个在湖里淹死的噩梦。

The hurricane was a long nightmare.

这次飓风令人担惊受怕很久。