Let your hair dry naturally whenever possible.

无论何时尽可能让你的头发自然干。

《柯林斯英汉双解大词典》

All that sun, water and chlorine made your hair dry, rough, brittle, and frizzy?

所有那些阳光、水和氯使你的头发干燥、粗糙、脆弱以及卷曲？

youdao

For guys with bad cowlicks, I suggest asking your barber or stylist to cut the hair dry so there's no water weight on the hair that will unnaturally hold the cowlick down.

对于那些发旋情况严重的人们，建议让理发师或发型师把他们的干枯头发减短，这样的话，头发就会垂下了使发旋处不翘。

youdao

Bones,hair,feathers, even the remains of plants have been found in deep, dry caves high in the rock walls.

VOA: special.2009.10.07

It was dry and broken. Her hair was falling out in some places on her head.

VOA: special.2010.03.28

Ms. Quan explained that by cutting the hair dry, she would be able to sculpt it the way it would fall and curl naturally.

WSJ: Haircuts for Women With Curly Hair: Testing 4 Salons

The irregularity of her features, her straight, dry hair, her small mouth, all caused her to cringe inwardly and suddenly to feel vulnerable.

NEWYORKER: In Other Rooms, Other Wonders

In the morning: Should I dry my hair or just run out with wet hair?

FORBES: The Right to Choose: Work and Motherhood