They returned at twilight.

他们在黄昏时返回。

《柯林斯英汉双解大词典》

We went for a walk along the beach at twilight.

黄昏时分我们沿着海滩散步。

《牛津词典》

Offer one in the morning and the other at twilight.

早晨要献这一只，黄昏的时候要献那一只。

youdao

An uneasy calm descends in Tunisia at twilight, after a weekend of chaos.

FORBES: Dust Settles in Tunisia

Between other drills, I squeezed in as many swings as possible, only quitting at twilight when I wrenched a muscle in my back.

WSJ: Pro Ball Baseball Clinic Weekend

Champagne Sabering 101 is held every night at twilight and this ritual -- where a sword is used to slice off the top of a champagne bottle -- must be seen to be believed.

CNN: 12 fun ways to hit the slopes without skis