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

• A cold is an infection of the upper respiratory tract.
  感冒是上呼吸道的感染。
• 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。
• Outcomes included respiratory tract and other illnesses, incidence rate ratios, and vaccine effectiveness.
  结果包括呼吸道和其它的疾病，发病率的比例和疫苗效价。
• Just a high fever and convulsions, which results from a virus upper respiratory tract inflection.
  只是病毒性上呼吸道感染引起的高烧和抽搐。
• The main infection sites was respiratory tract, the pathogen was main gram-negative bacilli and fungi.
  主要感染部位为呼吸道，病原菌以革兰阴性杆菌和真菌为主。
• A vast tract of land is ready for development
  一大片广阔的土地可待开发。
• 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。
• 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。
• Instruments developed at the hospital allow doctors to thread microscopic telescopes into the digestive tract.
  医院开发研制的仪器使医生们得以将显微内镜伸入消化道。
• Urinary tract infection can lead to a serious disease.
  尿道性感染可能会引起很严重的疾病。