tract [trækt]

例句:

• A cold is an infection of the upper respiratory tract.
  感冒是上呼吸道的感染。
  
• Water is ideal to flush the kidneys and the urinary tract.
  用水清洗肾脏和尿道最理想不过。
  
• She produced a feminist tract, "Comments on Birth-Control", in 1930.
  她1930年写了篇女性主义的短文《论节育》。
  
• The seasons now in tract were of short continuance.
  来自N. Bacon
• Pakistan cedes the Trans-Karakoram Tract of Kashmir to China.
  来自BBC
• Lawson called Domestic Goddess "a feminist tract".
  来自THETIMES
• Large tracts of sandy wastes were reclaimed.
  大片大片的沙质荒地被开垦出来了。
  来自《权威词典》