tracts

英 [trækts]

美 [trækts]

n.  (连通身体组织或器官的)道，束; 大片土地; 地带; (尤指宣扬宗教、伦理或政治的)短文，传单，小册子
tract的复数

柯林斯词典

• N-COUNT (土地等的)大片
  Atract ofland is a very large area of land.
  1. A vast tract of land is ready for development...
     一大片广阔的土地可待开发。
  2. They cleared large tracts of forest for farming, logging and ranching.
     他们清除了大片的森林以经营农耕、采伐与畜牧。
• N-COUNT (宗教、道德或政治的)短文
  Atractis a short article expressing a strong opinion on a religious, moral, or political subject in order to try to influence people's attitudes.
  1. 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》。
• N-COUNT 道;束
  Atractis a system of organs and tubes in an animal's or person's body that has a particular function, especially the function of processing a substance in the body.
  1. Foods are broken down in the digestive tract...
     食物在消化道里分解。
  2. A cold is an infection of the upper respiratory tract.
     感冒是上呼吸道的感染。
  3. ...urinary tract infections.
     尿路感染

双语例句

• The Development Features and Early Nutritional Regulation of Mammalian Gastrointestinal Tracts
  哺乳动物胃肠道发育特征和早期营养调控研究进展
• His campaign organization began churning out tracts and posters.
  他的竞选组织开始迅速炮制大量小册子和标语。
• Large tracts of wasteland have become a granary.
  荒滩变成米粮川。
• Hordes of locusts the crops in tracts rice field.
  成群成群的蝗虫毁灭了大片大片的稻田庄稼。
• Method: using atomic absorption spectrometry, cold atomic fluorescence method and double tracts atomic fluorescence spectrometry.
  方法：采用原子吸收光谱法、原子荧光法、道原子荧光法。
• The blue-staining areas are the connective tissue of many portal tracts that have collapsed together.
  蓝染区域为同时塌陷的许多门管区的结缔组织。
• I collected some kind of oily substance from the wound tracts.
  我从伤痕上采集了一些油性物质。
• Ecoli is naturally found in the intestinal tracts of all warm-blooded animals, including humans.
  大肠杆菌是人及各种动物肠道中的正常寄居菌。
• Vast tracts of forest burned for a week.
  大范围的林木一直延烧了一个星期。
• Most strains of avian influenza virus are mainly found in the respiratory and gastrointestinal tracts of infected birds, and not in meat.
  大多数禽流感病毒株主要是在受感染禽类的呼吸道和胃肠道中而不是在肉中发现的。