You describe something that you see or hear as melancholy when it gives you an intense feeling of sadness.
例句
...a painter of haunting melancholy canvases...一位画作中饱含挥之不去的忧伤情绪的画家The only sounds were the distant, melancholy cries of the sheep...只听得见远处羊群的哀鸣。
N-UNCOUNT
(习惯性或气质上的)忧郁，忧伤
Melancholy is an intense feeling of sadness which lasts for a long time and which strongly affects your behaviour and attitudes.
例句
I was deeply aware of his melancholy as he stood among the mourners...当他站在致哀的人群中时，我深深地体会到了他的忧伤。The general watched the process with an air of melancholy.将军神情忧郁地望着队列经过。
ADJ-GRADED
忧郁的;悲伤的
If someone feels or looks melancholy, they feel or look very sad.
例句
It was in these hours of the late afternoon that Tom Mulligan felt most melancholy...傍晚这几个小时里，汤姆·马利根最为抑郁。He fixed me with those luminous, empty eyes and his melancholy smile.他笑容忧郁地凝视着我，闪亮的眼睛里空无一物。
英汉词典释义
n.
忧郁, 悲哀,伤悲
All at once he fell into a state of profound melancholy.他立即陷入无尽的忧思之中。
adj.
忧郁的, 悲伤的,（令人）悲哀的,（令人）沮丧的
He felt melancholy after he failed the exam.这次考试没通过, 他感到很郁闷。
英英词典释义
Noun
1. a feeling of thoughtful sadness
2. a constitutional tendency to be gloomy and depressed
3. a humor that was once believed to be secreted by the kidneys or spleen and to cause sadness and melancholy
Adjective
1. characterized by or causing or expressing sadness;
"growing more melancholy every hour""her melancholic smile""we acquainted him with the melancholy truth"