A tremulous or pulsating effect produced in an instrumental or vocal tone by barely perceptible minute and rapid variations in pitch.
颤音一种颤动或振动效果，由可察觉的微小迅速的音阶变化在声音或乐器的调子中产生的
The sudden relief from strain left her in a tremulous state between laughter and tears.
由于从紧张状态中获得解脱太突然，所以她又处于一处悲喜交加的不安状态。
She answered the king's question with a tremulous voice.
她用颤抖的声音回答国王的问题。
