There was something in the darker recesses of his unconscious that was troubling him.

在他潜意识的隐秘的深处有一些东西让他觉得不安。

《柯林斯英汉双解大词典》

In the diet, it is generally true that the darker the fruit the higher its iron content.

在饮食中，水果颜色越深，其铁含量就越高，这通常是正确的。

《柯林斯英汉双解大词典》

The darker the skin is, the better the look is.

皮肤越黑，看起来就越好。

youdao

When the asbestos is seen in light near that wavelength, the minerals look darker than those around them.

VOA: special.2009.11.17

He's taken it from somebody else, ; and in doing so I think he's doing this deliberately; he's exposing some of the darker ironies behind his own literary ambition.

但他从别人那里借用了这个说法，他的做法让我认为他是故意这么做的;,他这是在他自己自由意志的背后,表现一些尖刻的讽刺。

耶鲁公开课 - 弥尔顿课程节选

When I see birches bend to left and right Across the lines of straighter darker trees, I like to think some boy's been swinging them.

当我看到白桦树弯下身子，向左，也向右,穿过排列成行的挺直黑黑的树，我总以为有个孩子把白杨“荡“弯了。

耶鲁公开课 - 现代诗歌课程节选

The advent of coloured contact lenses has also enabled the darker skinned to westernise their eyes.

BBC: NEWS | In Depth | In the eye of the beholder?

But the fire of freedom, political with economic, should keep lighting the darker corners.

FORBES: The Fire

Some critics have also deemed "Robinson Crusoe" a standard-bearer for the darker elements of imperialism.

WSJ: Fiction as Authentic as Fact | Robinson Crusoe | Daniel Defoe | Masterpiece by Danny Heitman