灰蒙蒙的英文：
dusky; overcast; gloomy

参考例句：

The sky hazed over then.
那时天空变得灰蒙蒙的。

Depressed, fearful, or depreciating thoughts look gray and muddy.
沮丧、怕或破坏性的想法看起来灰蒙蒙地很肮脏。

The early housewives passed him under the pale hazy sky, carrying bulging sacks
天空灰蒙蒙的，早起的家庭主妇挎着鼓鼓的袋子从他身旁走过。

His skin was now quite black, and he would just be a dark blur on a dark background.
他那黑黑的身体在灰蒙蒙的背景映衬下，不过是个模糊的黑点而已。

The bus from Odense rattled into a dusty village called Pozo Almonte.
从欧登塞来的巴士颠簸着驶入一个叫作波索阿尔蒙特的灰蒙蒙的村庄。

He had a stodgy, dusty, commonplace look to him which was more a matter of mind than of body
他有一副索然无味的，灰蒙蒙的平庸的样子，就他说来，这多半是思想的毛病，而不是相貌的毛病。

The miles of grey squalor she had travelled through were now the hazy and luminous city
她走过的绵延几英里长的灰蒙蒙的肮脏的建筑物现在变成了一座朦胧中灯火辉煌的城市。

dusky是什么意思：
a. 微暗的,忧郁的

Her dusky mouth was parted slightly to show tiny white teeth.
她那暗色的嘴微微启开，露出洁白的小牙齿。

Before long, here comes the wreck, dim and dusky, sliding along down!
过了不大一会儿工夫，那只破船就过来了，黑忽忽的一片，一直向下游漂荡。

So, to Ursula's ear, the tune fell out, drop by drop, from the unseen sky on the dusky town
尤秀拉听见旋律从看不见的天空传到黄昏的小镇上，一点点微弱下去。

overcast是什么意思：
adj. 天阴的，多云的；愁闷的

Full of or covered with clouds; overcast.
多云的充满云的或被云覆盖的；多云的。

The day is overcast and humid.
天气多云潮湿。

For three days it was overcast.
连续3天都是阴天。

gloomy是什么意思：
adj. 黑暗的，阴暗的；忧郁的，沮丧的

She is always in that gloomy mood.
她总是那样情绪低沉。

Real life was gloomy and strenuous.
真实的生活又沉闷又紧张。

Dark,misty,and gloomy.
视力模糊的阴暗的，雾状的，朦胧的