Her hair could have done with a wash.

她的头发该洗一洗了。

《牛津词典》

It had come early, when she was ten, and her sisters had braided her hair in cornrows, and her mother had given her napkins to pack in the dirt when she was done.

她的“老朋友”在她十岁的时候就来了，很早。那些日子，姊姊们给她编了辫子，母亲则给她纸巾收拾一片狼藉。

youdao

When you are done, let her hair fall, take her face in both hands and lay the deepest, most romantic kiss on her lips you can possibly conjure up. Now that's heaven...

当你吻她时，让她的头发自然垂下，双手捧起她的脸，给她的嘴唇来个你最深入的、最浪漫的吻。

youdao

During the campaign debates, while the other candidates traded accusations, she presented a squeaky clean image, reinforced by her appearance - her hair done up in a neat chignon, her clothes elegant but simple.

BBC: Green Party votes up for grabs in Brazil's election

Diana had done something with her hair, cut it shorter.

NEWYORKER: Wakefield

Distinct and monstrous in a bright muumuu, her dark hair done up in a row of little curls along her forehead, cheeks sloping into her neck.

NEWYORKER: Free Radicals