Dark is the sky! And veiled the unknown morrow!

漫天漆黑，遮掩了未知的明天。

youdao

The sky is turning dark.

天渐渐暗了。

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When the sky suddenly turns dark and the wind is strong, watch out! A dangerous storm might be coming.

当天色突然变黑且狂风大作的时候，要小心！一场危险的暴风雨可能要来了。

youdao

The Evening Star is the, roughly speaking, first heavenly body that's visible in the sky as it gets dark, at least at certain times of the year.

粗略说来,昏星就是,天黑时第一个能看见的天体,至少在一年的某个时间段是这样

耶鲁公开课 - 死亡课程节选

Entering the home from the building's dark hallway is like stepping into the sky.

WSJ: Sailing the Wide Miami Sky

In scenes where we stare out at what I presume to be the back side of Anor Londo (a portion of the city we see but never visit in Dark Souls) the sky is the same color as the perpetual sunset over Anor Londo in the first game.

FORBES: Will 'Dark Souls 2' Be A Prequel Or A Sequel?

The criteria for a dark sky site includes that the Milky Way is visible to the naked eye.

BBC: Stargazing live: Astronomers stage Isle of Man events