1N-COUNT [usually singular, oft inNOUN]单调的语调;一成不变的声音 If someone speaks in a monotone, their voice does not vary at all in tone or loudness and so it is not interesting to listen to. 单调的语调;一成不变的声音
The evidence was read out to the court in a dull monotone.
证据被当庭呆板地宣读了一遍。
2ADJ [usually ADJ n](声音或外表)单调的,无变化的 A monotone sound or surface does not have any variation in its tone or colour. (声音或外表)单调的,无变化的
He was seen on TV delivering platitudes about the crisis in a monotone voice.