hair

名词 hair:

1. a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss
2. a very small distance or space
   同义词：hair's-breadth, hairsbreadth, whisker
3. filamentous hairlike growth on a plant
   同义词：fuzz, tomentum
4. any of the cylindrical filaments characteristically growing from the epidermis of a mammal
   同义词：pilus
5. cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments
   同义词：haircloth
6. a filamentous projection or process on an organism

1. I'll have my hair trimmed tomorrow.
   明天我要修剪头发。
2. She was slender and had long dark hair.
   她身材苗条，有一头长长的黑发。
3. She wears her hair in a bun.
   她把头发盘成一个髻。
4. Don't pull my hair!
   别扯我的头发！
5. We escaped by a hair's breadth.
   我们从九死一生的险境中逃出。
6. She won by a hair.
   她以微弱的优势获胜。
7. The clothes some young people wear nowadays really make your hair curl.
   如今有些年轻人穿的服装真会把你吓一跳。
8. My hair has grown very long.
   我的头发长得很长了。

hair

n.（名词）

Any of the cylindrical, keratinized, often pigmented filaments characteristically growing from the epidermis of a mammal.
毛发：哺乳动物特有的，生长于表皮的柱状、有角质而且通常含有色素的细丝
A growth of such filaments, as that forming the coat of an animal or covering the scalp of a human being.
生毛（发）：毛发生长，如形成动物的皮毛或盖住人的头皮
A filamentous projection or bristle similar to a hair, such as a seta of an arthropod or an epidermal process of a plant.
茸毛：与毛发相似的细丝状突出物或刺毛，比如节肢动物的刚毛，或植物表面细胞的生成
Fabric made from the hair of certain animals:
毛织物：由某种动物毛做成的织物：
例句：
a coat of alpaca hair.
羊驼毛大衣

A minute distance or narrow margin:
一发之差：极小的距离或狭小的空白：
例句：
won by a hair.
险胜

A precise or exact degree:
精确，准确：精确或准确的程度：
例句：
calibrated to a hair.
极其精确的校准

来源：
Middle English her
中古英语 her
from Old English hôr
源自 古英语 hôr