Her mother wore one of her dark summer prints.

她母亲穿了她的一件深色印花布夏装。

《柯林斯英汉双解大词典》

It was a dark summer night, shot through with infrequent shimmers of lightning silently firing a cloud lying low in the west and portending a storm.

异乎寻常的闪电屡屡划破这个漆黑的夏夜，然而这一切却悄无声息，只是点亮了西方的低云，看来一场暴风雨即将来临。

youdao

What time does it get dark in summer?

夏天什么时候天黑？

《牛津词典》

"When Norman Rockwell originally painted it, the Red Lion Inn was dark because it was only open seasonally in the summer,because it had no heat.

VOA: standard.2009.12.25

"It was a dark summer for matkot, " says Mr. Zadok.

WSJ: In Israel, Sounds of Spring Include Thwack of Paddleballs

At a recent performance at a New York jazz club, Harrell showed up looking trim in a leather jacket and sunglasses--even though it was a hot, dark summer night.

FORBES: Jazz, Schizophrenia And Side Effects

Since Mercury went dark last summer, the chief executive, chief financial officer and general counsel have left.

FORBES: Correction Appended