音标:[,brɔŋkәjkәn'strikʃәn] ;
n. [医]支气管缩小,支气管狭窄
词型变化:名词复数形式 : bronchoconstrictions

Asthma by John Russell With World Health day on 7th April, this week we take a closer look at a very common health problem. Does your chest regularly feel tight? Do you find it difficult to breathe after light exercise? Do you sometimes make a wheezi

发表于:2019-01-02 / 阅读(233) / 评论(0) 分类 英语音频杂志

Vaccine - a planned exposure to an antigen in order that memory B lymphocytes can retain a memory for it. In practice the organism carrying the antigen is either killed or modified so that it does not

发表于:2019-01-03 / 阅读(256) / 评论(0) 分类 医务英语

RACHEL MARTIN, HOST: It is tick season, and with it comes the risk of Lyme disease. Once found mainly in New England, Lyme disease is now being reported in a much wider range of the U.S. NPR's Allison Aubrey reports that cases have more than doubled

发表于:2019-01-16 / 阅读(121) / 评论(0) 分类 2018年NPR美国国家公共电台5月

文本: So Skara Brae was not just an isolatedsettlement of fishers and farmers. Its people must have belonged to some largersociety, one sophisticated enough to mobilise the army of toilers and craftsmenneeded, not just to make these monuments, bu

发表于:2019-01-21 / 阅读(86) / 评论(0) 分类 跟着英剧练发音

1. Libya officials say the US ambassador Chris Stevens has been killed along with three other Americans in an attack on the US consulate in Benghazi. The consulate was burned down by Muslim protesters' angry about a film that ridicules the Prophet Mu

发表于:2019-02-11 / 阅读(114) / 评论(0) 分类 美联社新闻一分钟2012(九月)

Don: [WHISTLING A BIRDSONG-LIKE TUNE] Ya?l: Nice tune Don, but can you whistle with your tail like an Anna's hummingbird? D: Hummingbirds can whistle with their tails? Y: Male Anna's hummingbirds, which live along the west coast of North America, can

发表于:2019-03-06 / 阅读(122) / 评论(0) 分类 英语时差8,16
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braced beam
bubble pulse
built up connection
candidate key
carboxy nitrile rubber
carries a torch
Circaetus
clostridiums
coal coking process
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Consumer Product Safety Commission
countably seminormed algebra
culp
database semantic integrity
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Dragoni
drollness
earth station disks
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extra excitation
extration
F-104
falling credit
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forward derivative
free resolution
fuel rod surface temperature
Gentiana decumbens L.
granulatoside
haemocytometer
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hammer milling
have holidays by turns
heating plug
Ignatius of Antioch, Saint
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not on your tintype
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priority system for mission requests for tactical reconnaissance
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spacer gauge of dermatome
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thermal stage
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tricosene dicarboxylic acid
unnova
van der Waals bond
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