n. 马赫数

number song 1, 2, 3, 4, 5, 6, 7 that's the way to start 8, 9, 10, 11, 12 you'll learn them all by heart 13, 14, 15, 16 they're the next along 17, 18, 19, 20 that's the number song 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

发表于:2018-11-29 / 阅读(206) / 评论(0) 分类 优美儿童英语歌曲

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(111) / 评论(0) 分类 英语沙龙2004全年合辑下

Unit 2 What's your number? [00:02.30]单元二 你的号码是什么? [00:04.60]Lesson 7 [00:06.22]第七课 [00:07.84]1.Just speak [00:09.67]1.请讲话 [00:11.49]Hi,Kate.This is my new friend,Sue. [00:13.78]喂,凯特。这是我的新朋友,苏

发表于:2018-12-12 / 阅读(239) / 评论(0) 分类 人教版小学英语四年级

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(86) / 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(102) / 评论(0) 分类 TED演讲科技篇

发表于:2018-12-30 / 阅读(126) / 评论(0) 分类 自考英语(一)78讲

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(146) / 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(164) / 评论(0) 分类 晨读英语美文60篇

Male: Hello, this is the press office. Michelle: Rachel Allsop please. Male: Im sorry, You must have the wrong number . Theres no-one of that name here. Michelle: Oh. Can I check the number Ive got. is that not 5568790? Male: No, its 5558790. Michel

发表于:2019-01-07 / 阅读(238) / 评论(0) 分类 商务英语

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(133) / 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(122) / 评论(0) 分类 2014年VOA慢速英语(十一)月

今天我们要讲的几个习惯用语里面都有number这个词。大家一定知道number是数字。我们要学的第一个习惯用语是: his number is up。这个习惯用语起源于一次大战期间军队里的行话,说His number is up

发表于:2019-01-16 / 阅读(174) / 评论(0) 分类 美国习惯用语

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(114) / 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(142) / 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(115) / 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(191) / 评论(0) 分类 飞行员英语900句

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(120) / 评论(0) 分类 自然百科2012年

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(239) / 评论(0) 分类 PBS访谈社会系列

听歌学英语:你是我的唯一 Number One For Me Maher Zain(马赫-仔)瑞典黎巴嫩裔音乐才子,歌声清透而深沉,曲风流行而不张扬,与AKON、ladyGaGa、Brandy等著名国际音乐人进行过合作,后厌恶了极致商

发表于:2019-02-18 / 阅读(130) / 评论(0) 分类 听歌学英语

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(131) / 评论(0) 分类 万物简史
学英语单词
2-amino-9-p-aminophenyl-acridine
a-sway
agate bead
all politics are local
ampul(e)
anchor is aweigh
appendices fibrosa hepatis
appendicular abscess
Ballyshannon
Beclard's nucleus
Bhagaura
BIXen
blanketeer
champalimaud
channel stringer
Ciao, for now.
coastal desert
coding process
conjunct polymerization
contraction
counter current theory
cutaneous oidiomycosis
dark-colored
decibel measurement
dienynes
dipoplia
direct order cost
douping warp
effective rainfall
endanthem
escaping arc
exhaustive methylation
expansion bellow
felissimo
fimbria fimbriata
fixation reflex
flanged bush
give ... opinion on
goeduck
graphic user world
half-crazy
head share
hemichordatas
hey-hey
Hirst's phenomenon
hookless tapeworm
hydraulic shock
insist upon
iodcarnallite
jumbling
kitching
leaf-cutter
life estimation
Lunning Sound
management ratios
melting section
nickel up
nictating membranes
no-chaims bonus
ORTHOPAETICS
outward unit normal vector
pareis
patrikins
peaked amplifier
perplexer
Phenindamini
Phulera
polyvinylidene fluoride fibre
pommillion
precipitating factors
precipitation inversion
principle of leads and lags
pupal period
refused takeoff performance
restall
salix cinereas
schmeer
scored off
selective capital increase
self-report inventory
sequence of compact operators
serially ordered set
skeptopathy
snap to attention
sophisticators
speculative risk
Spelaeogriphacea
steeks
supremacisms
takes a look
tariff cycle
telephone line concentrator
tenderee
tgtg
thin wall bearing
totemite
trajectory model
transportable radio unit
unsteady fluidized bed
unwearables
Voerså
wilted