单词：tract
[医] 束, 道
n. a system of body parts that together serve some particular purpose
n. a brief treatise on a subject of interest; published in the form of a booklet
考试类型：[六级/托福/IELTS/GRE]
tract的用法和样例：
例句
- He owns a large tract of forest.他拥有一大片森林。
- He took many photos of the wide tracts of desert in North Africa.他拍了许多关于北非的广大沙漠的照片。
- Osteoporosis is a late complication of digestive tract disease.骨质疏松症是消化道疾病的晚期并发症之一。
- He had an infection in the upper respiratory tract.他上呼吸道感染。
- The tract ascends all the way to the VPL of the thalamus where it synapses on the tertiary neurons.此束会上升至丘脑腹后外侧核且于此与三级感觉神经元建立突触。
- There is no decussation in the lateral corticospinal tract after the decussation at the medullary pyramids.它们在髓状锥体交叉后，不会在皮层脊髓侧束中交叉。
- He wrote all the campaign tracts.这些竞选传单全是他写的。
常见句型
- Large tracts of sandy wastes were reclaimed.大片大片的沙质荒地被开垦出来了。
词汇搭配
- the digestive tract消化道
- the respiratory tract呼吸道
- the urinary tract尿道
经典引文
Tracts in favour of temperate drinking were..circulated by religious bodies and anxious patriots.
出自：G. M. TrevelyanEach day..continued with such improving tracts as Jessica's First Prayer.
出自：M. HolroydThis short tyme and small tract of my mortal life.
出自：E. HallThe seasons now in tract were of short continuance.
出自：N. Bacon
单词：tract 相关文章
Most people searching for buried treasure would be looking for silver and gold, ancient coins or rare artwork. But scientists studying the extinct giant moa (已灭绝的一种新西兰无翼大鸟) bird and its environment are looking for a differen
大千世界
She reciprocated by getting him a hobby kit for grinding a lens and making a camera. 她会帮他弄到一些小工具，让他可以做些打磨镜头、制作相机之类的事情。 I learned more from her than any other teacher, and if it hadnt b
乔布斯传
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到好的听力原文，请发贴到 听力原文收集区 ，您将会获得10到30积分的奖励! Thank you！
有声畅销书-秘密
It's Such a Gas! Natural bodily functions are a popular theme in lowbrow humor the world over, especially among adolescent boys, and none more so than farting. A fart, which is the expulsion of gas fr
有声英文阅读
合同 Contract （一） We'll have the contract ready for signature. 我们应准备好合同待签字。 We signed a contract for medicines. 我们签订了一份药品合同。 Mr. Zhang sings the contract on behalf of the China National Silk Imp
实用英语
It Can't Happen Here by Sinclair Lewis Chapter 27 Mary Greenhill, revenging the murdered Fowler, was the only one of the conspirators who seemed moved more by homicidal hate than by a certain incredulous feeling that it was all a good but slightly ab
有声英语文学名著
Science and Technology Physiognomy Facing the truth 科技 面相学 面对真相 Why a man's face can lie but still produce orgasms 为什么男人那张会骗人的脸还能引起性高潮？ THESE days, physiognomy is an unfashionable science. 过去
经济学人科技系列
But New Bedford beats all Water Street and Wapping.In these last mentioned haunts you see only sailors; but in New Bedford,actual cannibals stand chatting at street corners;savages outright;many of whom yet carry on their bones unholy flesh.It makes
白鲸记
1.Tight skirts 1.紧身的裙子 Tight skirts compress nerves and that's the reason why you feel pain in your back. 紧身裙压迫你的神经，那就是你总觉得背部疼痛的原因。 2.Heavy earrings 重的耳环 If worn too often, heavy ear
阅读空间
BEIJING, Feb. 2 (Xinhuanet) -- The source of cadmium contamination in the Liujiang River had been blocked and tap water in Liuzhou is safe to drink, said environmental officials of the Guangxi Zhuang autonomous region on Wednesday. Tap water from Liu
英语新闻
KIEV, Aug. 6 (Xinhua) -- The death toll in a chemical plant explosion in eastern Ukraine's Donetsk region has risen to 5 after two of the wounded succumbed to injuries, the Ukrainian State Service for Emergencies said on Tuesday. The blast occurred a
英语新闻
By Melinda Smith Washington 17 July 2007 Antibiotics are designed to fight a multitude of bacterial infections. But some infections -- such as those in the urinary tract -- have become resistant to many antibiotics. VOA's Melinda Smith reports on a r
2007年VOA标准英语（七月）
WASHINGTON Doctors have long warned against prolonged use of antibiotics, saying that bacteria can build resistance to drugs, eventually rendering them ineffective. The World Health Organization reported Wednesday that antibiotic-resistant bacteria n
英语新闻
SANTIAGO, Jan. 10 (Xinhua) -- Qatari auto racer Prince Nasser Al Attiyah won Day 6 of the legendary Dakar Rally Thursday, behind the wheel of a Buggy. Al Attiyah won the sixth stage of the rugged off-road race, between the Chilean cities of Arica and
英语新闻
On May 29, the Chinese public was put on alert by a notice issued by the National Health and Family Planning Commission. 5月29日，国家计生委的一条消息让中国民众警觉起来。 It was about Chinas first case of Middle East respirator
阅读空间
Lo, in the orient when the gracious light 瞧呀，瞧东方仁慈的朝阳抬起了 Lifts up his burning head, each under eye 火红的头颅，每一双尘世的眼晴 Doth homage to his new-appearing sight, 都向它初升的景象致敬， Servin
莎士比亚十四行诗全集
Making food at home is a crucial part of healthy eating. But on some days, you just want a break from the stove to treat yourself to a delicious meal or a night out with friends that doesn't require you to cook beforehand or clean up afterwards. Howe
阅读空间
1.tomato juice 番茄汁 Tomato juice contains the antioxidant lycopene.Scientific studies have suggested that lycopene consumption may protect against prostate cancer, breast cancer, atherosclerosis, and coronary artery disease.Epidemiological resea
英语口语