tract

英 [trækt]

美 [trækt]

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

复数：tracts　

CET6TOEFLIELTSGRETEM8医学

Collins.1 / BNC.6081 / COCA.6133

牛津词典

noun

• （连通身体组织或器官的）道，束
  a system of connected organs or tissues along which materials or messages pass
  1. the digestive tract
     消化道
  2. a nerve tract
     神经束
• 大片土地；地带
  an area of land, especially a large one
  1. vast tracts of forest
     大片大片的森林
• （尤指宣扬宗教、伦理或政治的）短文，传单，小册子
  a short piece of writing, especially on a religious, moral or political subject, that is intended to influence people's ideas

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

英英释义

noun

• a bundle of myelinated nerve fibers following a path through the brain
  Synonym:nerve pathwaynerve tractpathway
• a system of body parts that together serve some particular purpose
• a brief treatise on a subject of interest
  Synonym:pamphlet
• an extended area of land
  Synonym:piece of landpiece of groundparcel of landparcel

双语例句

• Such as colds can trigger the upper respiratory tract infection.
  像感冒等上呼吸道感染就能够引发此病。
• A B vitamin essential for the normal function of the nervous system and the gastrointestinal tract.
  一种B类维生素，对于维持神经系统和胃肠道的正常功能起关键作用。
• The atmosphere is often highly irritating to the eyes and to the respiratory tract.
  大气常会刺激眼睛和呼吸系统。
• Objective To improve X-ray in diagnosis of newborn congenital digestive tract malformation.
  目的提高和普及新生儿先天性消化道畸形X线诊断水平。
• A cold is an infection of the upper respiratory tract.
  感冒是上呼吸道的感染。
• Monitoring cows frequently postpartum and early treatment of infection will prevent long-term damage to the reproductive tract.
  产后经常观察奶牛和感染的早期治疗将预防对奶牛的生殖道产生长期的损害。
• 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。
• These gut hormones are frequently peptides, and regulate the movements and secretions of the alimentary tract.
  胃肠激素的化学本质是肽类，对消化道运动和分泌起调节作用。
• That glass-and-plastic device is used to study how drugs and foods dissolve through the GI tract.
  那种玻璃和塑料装置被用来研究药物和食物在消化道内如何溶解。
• The most common side effects in clinical studies were upper respiratory tract infection, sore throat, and diarrhea.
  临床研究中最常见的副作用是上呼吸道感染，喉咙痛和腹泻。