马赫锥, 扰动锥

Grasp the 1) cone with the right hand firmly but gently between thumb and at least one but not more than three fingers, two-thirds of the way up the cone. Then 2) dart swiftly away to an open area, aw

发表于:2018-11-28 / 阅读(297) / 评论(0) 分类 疯狂英语2002年

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(151) / 评论(0) 分类 英语沙龙2004全年合辑下

[00:00.00] Unit 4 In my classroom [00:05.20]A Point and say. [00:09.56]Look at the board.Eleven,twelve,thirteen,fourteen,fifteen. [00:29.34]Sixteen,seventeen, eighteen,nineteen, twenty. [00:43.39]Look at the board.Eleven,twelve,thirteen,fourteen,fift

发表于:2018-12-12 / 阅读(165) / 评论(0) 分类 小学英语(深港版)第三册

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(126) / 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(142) / 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(199) / 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(208) / 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(171) / 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(170) / 评论(0) 分类 2014年VOA慢速英语(十一)月

Larry和李华刚刚忙完手头的工作。他们一起去吃冰激凌。李华今天要学两个常用语:my treat和ginormous. LL: Well, Li Hua, you just finished a big paper, and I just finished an important project at work. Let's go for ice cr

发表于:2019-01-15 / 阅读(175) / 评论(0) 分类 美国之音《流行美语》

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(149) / 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(186) / 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(168) / 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(228) / 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(151) / 评论(0) 分类 自然百科2012年

a dumb boy 笨小孩 A young boy enters a barber shop and the barber whispers to his customer ..., This is the dumbest kid in the world. Watch while I prove it to you. The barber puts a dollar bill in one hand and two quarters in the other, then call

发表于:2019-02-03 / 阅读(229) / 评论(0) 分类 趣味英语

Every morning at approximately 8:48 a.m., I pass itthe brick building that I visited many times as a child and that once seemed so grand, now a miniature playhouse in my mind. 每天早晨,大约8点48分的时候,我都会路过那栋砖砌的建筑

发表于:2019-02-13 / 阅读(188) / 评论(0) 分类 英语美文

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(272) / 评论(0) 分类 PBS访谈社会系列

本文选自美国作家Jim Willis的畅销书《Pieces Of My Heart-----Writings Inspired by Animals and Nature》,该书以自述的形式讲述了一只家犬对昔日主人的真情告白。当年作者用七千美元以全版广告的形式在报

发表于:2019-02-17 / 阅读(226) / 评论(0) 分类 阅读空间

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(180) / 评论(0) 分类 万物简史
学英语单词
acoustic(al) board
advance rental payment
aluminium-alloy dross
Alveonasus lahorensis
areal center
at-the-ready
autocook
basophilic stippling
bathymeters
battery tester
battle axe
beryllium toxicity
boom shakalaka
brutalitarians
carbon dioxide removal
ceize
cell extract
charvaka
chromaticity
chunyun
colour-frequency control coil
conocliniums
cutchogue
CYP27
deck covering plan
dendronanthus indicus
double inheritance
doxephrin
embryonic stage
erekat
exhaust-pressure
exhaust-valve
first memory
footloose and fancy-free
forest road
foster daughters
Frank Whittle
frozen vegetable
GPID
gutmanns
have a lot of time for sb
heat-prostration
hierarchical cluster anaysis
honorific title
Hot as blue blazes
in-builts
in-fielder
inspection plan
intermittent malaria
ir-cis
isovoacristine
karar
labial syphilis
lacturamic acid
Lampridoidei
lenzites betulina
Leptosomatidae
mokador
near edge
nineball
nontelepaths
ocular siderosis
off-year election
office lettering
ogival section
on lending
overness
penis palmatus
perimidine
phase order
phenampromide
phosphorous cyanide
phytophthora capsici leonian
pink-slipped
pixie cape
planetary steering device
pretty nearly
pyrometric telescope
quantity equation
re-imposition
Retrop
round robin algorithm
sales-effect research
sarkissian
saurterne
sector boss
semiautomatic defrosting
serum rheumatoid factor
software quality metric
soil macroorganism
spagirically
specified equipment inspection code
Stnediol
stomatitis follicularis
stratigraphic unconformity reservoir
three-course
Trudeau Salute
two-stroke
video cable
virtual manufacturing
waggering
wauking