unbleached [ʌnˈblitʃt]

例句:

• We were in urgent need of unbleached white bristle to produce brush.
  我们急需白猪鬃生产刷子.
  
• Her mother asks her to buy two chi of unbleached cloth.
  妈妈让她买两尺本白布回家.
  
• A knitted , unbleached cotton fabric for underwear.
  用于内衣的棉布制成的纤维.
  
• The salt itself, up close, was the color of unbleached sugar, but the sunlight used it as if it were the brightest white.
  来自NEWYORKER