heavily cloudy (e.g., before rain)
It was muggy and overcast.
那天天气闷热又潮湿,阴沉沉的。
—— 《柯林斯英汉双解大词典》It was dull and slightly drizzly as we left.
我们离开时,天阴沉沉的,飘着小雨。
—— 《柯林斯英汉双解大词典》The sky was dark and threatening.
天空乌云密布,阴沉沉的。
—— 给力词典精选It´s always dull and raining.
天老是阴沉沉的,下着雨。
—— 《柯林斯英汉双解大词典》I hate these grey days.
我讨厌这阴沉沉的天气。
—— 给力词典精选