un. 上临界马赫数

NASA Successfully Tests Hypersonic 1 Jet Three years after its first test flight ended in an explosion, NASA on March 27 successfully launched an experimental jet that the agency believes reached a re

发表于:2018-12-05 / 阅读(122) / 评论(0) 分类 英语沙龙2004全年合辑下

Situation Critical 十万火急 by Kevin Lustig In some jobs, danger can appear at any moment. In the blink of an eye, the routine can become perilous. This month, the National Geographic Channel shows us what happens when a normal situation becomes

发表于:2018-12-08 / 阅读(170) / 评论(0) 分类 常春藤解析英语

Confidence,confident F: There are a number of important areas to consider for a branch office. M:we measure stability in government and economy. F: another critical area is business investment. M: You mean how much investment is going on in an area?

发表于:2018-12-16 / 阅读(149) / 评论(0) 分类 VOA 商务英语

That's an unnatural act for a rocket. 这对于火箭来说,不是一种自然的行为。 The third stage has a camera. 第三次发射,火箭上有一个摄像机。 We call it rocketcam. 我们称之为火箭摄像机。 And it's pointed at th

发表于:2018-12-18 / 阅读(93) / 评论(0) 分类 TED演讲科技篇

40 years later, aero experts coined the term transonic. 40年后空气动力学专家创造了跨音速这个术语。 They debated, should it have one S or two? 他们争论这个术语应该用一个S,还是两个S? You see, they were having trou

发表于:2018-12-18 / 阅读(111) / 评论(0) 分类 TED演讲科技篇

Mother Machree There's a spot in my heart which no colleen may own; There's a depth in my soul never sounded or known; There's a place in my memory my life that you fill; No other can take it no one e

发表于:2018-12-30 / 阅读(156) / 评论(0) 分类 英语沙龙2004全年合辑上

Mother Machree 慈母颂 Theres a spot in my heart which no colleen may own; Theres a depth in my soul never sounded or known; 在我心中有那么一隅, 任何少女也不能占据。 它埋在我灵魂的深处, 我从不声张从不表露。

发表于:2019-01-02 / 阅读(175) / 评论(0) 分类 晨读英语美文60篇

Four Young People Who Make the World Better 四个年轻人致力于让世界更美好 What can technology do to make your world better? Four young people are starting new businesses to answer that question. Mateusz Mach Eighteen-year-old Mateusz Mac

发表于:2019-01-12 / 阅读(147) / 评论(0) 分类 2016年VOA慢速英语(三)月

Young Technology Expert Works to Stop Car Thefts Kenya is East Africas largest economy. Its capital Nairobi is growing quickly. But so is the citys crime rate -- the Nairobi Metropolitan Crime Observatory says thieves steal an average of 10 cars each

发表于:2019-01-12 / 阅读(138) / 评论(0) 分类 2014年VOA慢速英语(十一)月

MICHEL MARTIN, HOST: It's no secret that corruption is widespread in Kenya. But recently, the conversation about it got real when a bus driver confronted the police and the president with a story of bribery on national television. NPR's Eyder Peralta

发表于:2019-01-16 / 阅读(123) / 评论(0) 分类 2017年NPR美国国家公共电台2月

STEVE INSKEEP, HOST: The United States Supreme Court is busy this week with a ninth justice, Neil Gorsuch, on the bench. Today, the court hears arguments in a Missouri case with the potential to open state coffers for aid to parochial schools. Like M

发表于:2019-01-17 / 阅读(157) / 评论(0) 分类 2017年NPR美国国家公共电台4月

2010年3月8日是三八妇女节,给自己的母亲或者女性朋友送上一首英语诗歌-《慈母颂》作为祝福,给她们一个意外的惊喜和慰问吧。为大家收集了几首 英语诗歌祝福语,祝福全天下的女性朋友们

发表于:2019-01-20 / 阅读(131) / 评论(0) 分类 实用英语

Expedite climb to FL190. 21.加速上升到高度190。 Climb to FL280 expedite until passing FL180. 22.上升到高度280,快速通过高度180。 Unable to expedite climb due weight. 23.由于重量原因不能加速上升。 Descending immediate

发表于:2019-01-31 / 阅读(199) / 评论(0) 分类 飞行员英语900句

By Naomi Martig Hong Kong 28 November 2007 Japan's upper house of parliament has approved a bill that would stop the country's air force transport mission in Iraq. It is the latest clash between the opposition party and the government over Japan's ro

发表于:2019-01-31 / 阅读(122) / 评论(0) 分类 VOA常速英语2007年(十一月)

Before we take this giant leap, we need to be able to carry everything needed for a three-year -round trip with us. This is a much larger effort than getting to the moon. Its the Apollo mission on steroids. At this point we know at least as much as t

发表于:2019-02-03 / 阅读(126) / 评论(0) 分类 自然百科2012年

A Christmas survey showed that men spend more time looking for gifts for their bosses than for their wives, but women spend more time shopping for their pets than their spouses. This wouldn't happen if spouses remembered the truth. Your wife is the b

发表于:2019-02-05 / 阅读(157) / 评论(0) 分类 趣味英语

今天我们要学的习惯用语有共同的关键词: lip。大家都知道lip是嘴唇。嘴唇可是我们身上忙碌的器官,我们说话,吃喝都得靠嘴唇帮忙。嘴唇还帮我们传情达意。难怪由lip这个词发展而来的习惯

发表于:2019-02-12 / 阅读(177) / 评论(0) 分类 美国习惯用语

GWEN IFILL: After serving in Iraq and Afghanistan, many veterans face an uphill battle finding work in civilian life. There's been an increase in efforts to help ease their transition, but one segment of the veteran population is often overlooked. Sp

发表于:2019-02-17 / 阅读(245) / 评论(0) 分类 PBS访谈社会系列

CAIRO, Jan. 29 (Xinhua) -- The polling stations of Egypt's Shura Council (upper house of parliament) elections closed Sunday on the first day of the two-day vote with a low turnout rate of voters. In the first stage of the upper house elections, vote

发表于:2019-02-18 / 阅读(131) / 评论(0) 分类 英语新闻

At least the names for the two main possible culprits are entertaining: they are said to be either WIMPs (for Weakly Interacting Massive Particles, which is to say specks of invisible matter left over from the Big Bang) or MACHOs (for MAssive Compact

发表于:2019-02-25 / 阅读(145) / 评论(0) 分类 万物简史
学英语单词
acquifiers
actual fluid
addendum factor
anal fistula
anality
anapronoe reinhardti
anecdotally
animates
anorectal lymph nodes
aquatic vertebrates
archipenko
associative responsibility
automatic degaussing equipment
baronscourt
Big nose
bottom hole temperature recorder
broomball
Calfbird
capital saving invention
cardiovascular function
Carya laciniosa
castle circular nut
catalectrotonus
categories of groups
cobunus filicornis
concisure
cracking susceptibility
crataegus aestivaliss
diffraction region
dissipation of vorticity
egress filtering
elevated temperature holograph
emergency risks
ephemeran
exponential valuation
fitout
gigantochloa levis (blanco)merr.
Gllava
hannons
hexamere
hingeless rotor
hot dark matter
hydroeconomic analysis
information processing architecture
jobsites
laryngeal vertigo syndrome
levelized unit cost
maeghts
make sounds
markspeople
median longitudinal carinae
metritic synovitis
monolepta excavata
morning coffee
most certainly
Muhlenbergia curviaristata
non-adiabatic process
nonswitched transmission
notam
octanoyl-
Oshkosh
paillette
patellar ligaments
penny-wisdom
periselene
Pheheirospermum japonicum
planetary system chemistry
planter plate
Pneumocaulus
pollutionists
portable trough
powerboaters
primary design stage
response learning
Rstrui
saltating velocity
Schildwolde-Hellum
seagen
search airship
single ladder dredger
slicpack
software requirements engineering method (srem)
soupily
spark blow-out
spring clip
staged search
standby buffer
standi
Strob.
support equipment
table-drive
tax-paid cost
the dirty end of the stick
top stow cargo
toxidermic
transversal slope cultivation
triply primitive cell
tromps
Viburnum amplifolium
weighing bed
yellow rockets
Yulania zenii