I recognized her by her red hair.

我从她的红头发认出了她。

《牛津词典》

The foam of it covered her lashes and brows, with her red hair. For a minute she looked like a demented Queen Elizabeth.

泡沫覆盖了她的睫毛和眉毛，还有她的红头发。有那么一会儿，她看起来就像一个疯狂的伊丽莎白女王。

youdao

That dress matches her red hair.

那件连衣裙和她的红头发很相配。

youdao

Well, I think everybody's got red hair at the minute because Rihanna dyed her hair red.

我想现在很多女人染红发是因为蕾哈娜染成红发了。

忘不了的生日礼物 - SpeakingMax英语口语达人

It was a jolt to see her red hair and serene face peering out.

BBC: The death of democracy

Her red hair, her very white skin, her far too innocent heart.

NPR: Excerpt: 'Borges and the Eternal Orangutans'

In Hong Kong for the opening of a traveling retrospective of her work, she arrived at the exhibition, her characteristic red hair contrasting with her pale complexion, with a small entourage of suitably fashionable and vaguely mysterious looking characters in tow.

CNN: The world according to Vivienne Westwood