"They have trouble sleeping." "They might have some sort of nightmares or dreams about what they have seen.

VOA: standard.2010.07.01

They're not bad, bad, they're not nightmares, but most dreams are from a scale of one to ten with five and a half in the middle they're on the negative side.

说它们不好，并不是说它们是噩梦，如果用1到10来评分,5。5为中间分值,大部份梦都是在5。5分以下。

耶鲁公开课 - 心理学导论课程节选

He was worried about nightmares.

他担心会作噩梦。

耶鲁公开课 - 心理学导论课程节选

Symptoms can include flashbacks, nightmares and memory problems, and can last for months or even years.

VOA: standard.2010.07.01

the lead up to the 9/11 anniversary, suddenly I was having the same kinds of nightmares I had shortly after the attacks on 9/11."

VOA: standard.2010.07.01

"This was a difficult scene for me and I had bad days afterwards, nightmares,stress.

VOA: standard.2010.07.01

Who could forget the ghostly figure of Freddy Krueger: a disfigured face long razor-sharp knives flash from his fingers and his sinister way of turning the dreams of his victims into deadly nightmares.

VOA: standard.2010.05.04