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

• They may also irritate the upper respiratory tract, causing coughing, choking, and general debility.
  这些也能刺激上呼吸道，引起咳嗽、窒息和全身虚弱感。
• 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。
• Conclusion Fiberoptic bronchoscopy is an important tool to diagnose and remove foreign bodies of the lower respiratory tract.
  结论纤支镜可作为对下呼吸道异物诊断和钳取的重要工具。
• Foods are broken down in the digestive tract
  食物在消化道里分解。
• 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。
• So it's necessary for you to be careful not to catch cold and other upper tract respiratory infections.
  因此，患者一定注意防寒，预防感冒和上呼吸道感染等。
• 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。
• Fresh fruits and vegetables are easily digested in the GI tract and do not cause systemic effects.
  新鲜水果和蔬菜很容易在GI系统中消化并不会影响系统。
• 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。
• 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。