hair/heəʳ/

1. U 头发

• She is brushing her hair. 她在梳头发。

2. C (一根一根的)毛发

• My mother has quite a few gray hairs. 我母亲已有了相当多的白发。

词组get in sb.'s hair 非正式 触怒某人，使烦恼

• The baby's crying got in my hair during the night. 夜里婴儿的哭闹声使我烦恼不堪。

hang by a hair 千钧一发，情况危急 keep one's hair on 口 保持镇静，不激动，不发火 make sb.'s hair stand on end 使某人毛骨悚然 split hairs 作不必要的分析，吹毛求疵

• There's no need to split hairs over the color of the material. 没必要对材料的颜色吹毛求疵。

tear one's hair (out) 极其气恼(或担忧等)

• The boss tore his hair at the delay of the schedule. 老板因为进度的拖延而大为气恼。

to a hair 丝毫不差地，精确地