A single hair is fixed at one end below the skin in the bulb.

每根头发都由皮肤下的毛囊固定着其中一端。

youdao

The Princess unwound her long braid, pulled out a single hair and handed it to the littlest knight.

公主解开了长长的辫子，拔下一根头发交给那位最小个的骑士。

youdao

Even a single hair has its own shadow.

一根头发丝也有自己的影子。

youdao

Each hair on a person's head grows from a single tube-like hole in the skin called a follicle.

VOA: special.2011.04.05

If these 8 million people , would correspond to the number of neurons in the brain, the equivalent of the hair cells that you could get out of a single cochlea would be equivalent to one person walking down 42nd street.

如果这八百万人,相当于大脑中的神经元数量的话，能从一个耳蜗内取出的毛细胞,就好比是,第42大街上的某位行人。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

This is a single fracture that is very small, like the width of a hair.

VOA: special.2009.02.04

If not, well, legend has it that the sword is held up by only a single horse hair...

BBC: Nadine Dorries still under sword of Damocles

That other client--Barbara Campbell, a 55-year-old single mother with blonde hair, blue eyes and skin freckled by the Big Sky sun--toured the ranch by horseback only a week prior.

FORBES: Life

People copied his Jheri-curled hair and single-gloved, zippered-jacket look.

CNN: Michael Jackson, pop music legend, dead at 50