A lonely mood is akin to a lingering sadness, but with a particular referent; it's sadness about not having someone in your life where caring and deep understanding is mutually felt.

寂寞的心境犹如挥之不去的悲伤，但却有特定的所指；它是一种因无人出没于你那本该被关怀和深切理解所相互渗透的生活的悲伤。

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They seem to sort of reflect deep differences in your mood and emotions and thoughts.

他们反应出深层次的不同，在你的情绪，情感及思想中。

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The deep mood swings from high (mania) to low (depression) may last for weeks or months, causing great disturbances in the lives of the person who has the illness, along with family and friends.

这种剧烈的由高(躁狂)到低(抑郁)的情绪变化可能持续数周或者数月，给患者及其家属和朋友的生活带来巨大的困扰。

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Duke Ellington and his orchestra recorded a famous song Mood Indigo about the deep blue color,indigo.

VOA: special.2009.11.15

They seem to sort of reflect deep differences in your mood and emotions and thoughts.

他们反应出深层次的不同,在你的情绪，情感及思想中。

耶鲁公开课 - 心理学导论课程节选

When villain Yar Badshah meets and browbeats his jittery backers, the mood is pure film noir - all hard lights, deep shadows and coughing smokers.

CNN: ONE MAN'S WAR ON SLEAZE

Yardy made a composed unbeaten 13 and shared 22 with Ravi Bopara, but the Essex batsman was caught in the deep and with both sets of fans in fervent mood, Gul bowled the final over.

BBC: Century for Andrew Strauss in England win over Pakistan