Examples

他脸色灰暗，象有什么大病。

His face is grey and he looks very ill.

我爱我生命中的晦暝时刻，虽然灰暗但是可以让我更珍惜阳光。

I love those depressing times in my life. Although dark, they made me cherish the sunshine more.

灰暗的天空。

to paint a grim/gloomy/vivid picture of sth

将某物描绘成一副凄凉/灰暗/生动的景象

to paint a vivid/gloomy/bleak {etc} picture (of sth)

描绘了(某事的)一副生动/灰暗/凄凉{等}的景象

The sea had lost its sparkle and now looked dark and gray.

这片海失去了它的光泽，现在看起来很灰暗。

He opened his eyes to find himself in a dimly-lit tent, seated upon hard muddy grass

他睁开眼睛，发现自己在一个灰暗的帐篷里，坐在湿硬的草地上。