二次变分问题

A: I was supposed to meet with you at 1:30. B: Yes, I see. What did you need to see me about? A: There's a problem with my schedule. B: What's the problem? A: Two of my classes occur at the same time. B: Well, I can see that's a problem. A: Is it at

发表于:2018-11-30 / 阅读(272) / 评论(0) 分类 英语情景对话-大学生活

A: I have an appointment for 1:30. B: What can I help you with? A: Well, I have a problem with my class schedule. B: What is it? A: It seems that I've been given two classes scheduled at the same time. B: I can understand the problem with that. A: Is

发表于:2018-11-30 / 阅读(222) / 评论(0) 分类 英语情景对话-大学生活

Teacher Uses Music to Make Math Fun, Cool Making math fun The voice heard in the video belongs to mathematics teacher Jake Scott. Most of the performers are his students. Watching videos is not part of their daily routine but it is one of the essenti

发表于:2018-12-08 / 阅读(121) / 评论(0) 分类 VOA标准英语2013年(一月)

A: What can I help you with today? B: I need to talk to you about transferring. A: Where did you want to transfer to? B: I have no idea. A: You have plenty of time to think about it. B: What do I need to do in order to transfer? A: Youre going to nee

发表于:2018-12-17 / 阅读(105) / 评论(0) 分类 大学英语对话

By Carol Pearson Washington, DC 15 September 2006 watch Meth and Dental Care Methamphetamine Ice Methamphetamine is an addictive drug that can damage brain cells. It is suspected to cause a movement disorder similar to Parkinson's disease. Meth use

发表于:2019-01-07 / 阅读(221) / 评论(0) 分类 2006年VOA标准英语(九月)

A: Good morning, is this Ryan? B: You are speaking with Ryan. How can I help you? A: Ryan, this is Malia, and I need to call in sick today. B: What seems to be the problem? A: I went hiking and have terrible poison oak. B: When did you get that? A: I

发表于:2019-01-10 / 阅读(104) / 评论(0) 分类 英语情景对话-健康

By Paul Sisco Washington, DC 27 October 2006 watch Deforestation report Deforestation, an ongoing problem, is receiving new scrutiny, this time from the World Bank. It is all part of the bank's mission to reduce global poverty by spurring economic g

发表于:2019-01-11 / 阅读(172) / 评论(0) 分类 2006年VOA标准英语(十月)

Political Differences Cloud Obama Job Proposals President Barack Obama's speech on the U.S. economy is just the latest in a long history of government proposals to stimulate economies and put people back to work. But with the U.S. economy expanding m

发表于:2019-01-13 / 阅读(138) / 评论(0) 分类 VOA标准英语2011年(九月)

The U.S. energy secretary says global warming is proceeding more quickly than originally predicted. Stephen Chu is in China, the world's top emitter of the greenhouse gases that cause global warming, to urge greater Sino-American cooperation to comb

发表于:2019-01-14 / 阅读(122) / 评论(0) 分类 VOA标准英语2009年(七月)

By Margaret Besheer Washington 07 February 2007 Egypt's foreign minister says solving the Israeli-Palestinian conflict would go a long way to bringing peace to the Middle East and diminishing the allure of extremist groups. Speaking to an audience in

发表于:2019-01-16 / 阅读(168) / 评论(0) 分类 2007年VOA标准英语(二月)

So this is the complexity of the world that surrounds us. 所以这就是我们所处环境的复杂性。 This perhaps is why we find the God complex so tempting. 这也许正是为什么我们发现万能神力这么有吸引力的原因。 We tend

发表于:2019-01-18 / 阅读(111) / 评论(0) 分类 TED演讲教育篇

A: Can we talk? B: What about? A: Im not too clear on some things about my lease. B: Is there a problem? A: How many years is my lease for? B: In three years your lease will be up. A: Can I move out before those three years? B: If you do, I will keep

发表于:2019-01-20 / 阅读(123) / 评论(0) 分类 地道英语对话-租房

A: I would like to talk to you, if you have time. B: Whats going on? A: I want to discuss some things about my lease. B: What arent you too sure about? A: Can you tell me when my lease is up? B: Your lease is for three years. A: If I ever decide to l

发表于:2019-01-20 / 阅读(123) / 评论(0) 分类 地道英语对话-租房

A: Hi, is this the water company? B: This is the water company. May I help you? A: As a matter of fact, you can. B: What do you need? A: In a few days, Im going to be moving. B: Okay, and what do you need help with? A: Im going to need the water turn

发表于:2019-01-20 / 阅读(133) / 评论(0) 分类 地道英语对话-租房

A: Am I speaking with someone from the water company? B: Yes. Can I assist you with something? A: I certainly hope so. B: Whats the problem? A: I will be moving into a new house in a few days B: What exactly do you need my help with? A: Ill need you

发表于:2019-01-20 / 阅读(145) / 评论(0) 分类 地道英语对话-租房

A: I have a problem that needs fixing immediately. B: What is it? A: I think that a pipe broke in my ceiling. B: How do you know? A: The ceiling is wet and water is dripping onto my carpet. B: Your apartment isnt flooded, is it? A: Not yet, but my ca

发表于:2019-01-20 / 阅读(125) / 评论(0) 分类 地道英语对话-租房

A: I have a problem. B: Whats the problem? A: A pipe burst in my ceiling. B: Why do you think that? A: There is water dripping from my ceiling. B: Is it causing a flood in your apartment? A: No, but my carpet is getting wet. B: How long has this wate

发表于:2019-01-20 / 阅读(137) / 评论(0) 分类 地道英语对话-租房

A: Im calling about a problem with my apartment. B: Tell me what the problem is. A: There must be a leaking pipe in my ceiling. B: Are you sure? A: There is water leaking from my ceiling. B: Is the water flooding your apartment? A: Its not flooding,

发表于:2019-01-20 / 阅读(138) / 评论(0) 分类 地道英语对话-租房

A: Is Alice available? B: You're talking to her. A: I've called you a hundred times today. B: I was busy doing something. I apologize. A: No problem. B: Did you need something? A: Did you want to do something tomorrow? B: Is there somewhere special y

发表于:2019-01-20 / 阅读(162) / 评论(0) 分类 英语闲谈

Todd: Now Jason, you're an artist. Jason: That's right, yep. Todd: What kind of artist are you? Jason: I draw all sorts of things, but mostly I like to draw on the computer, using photoshop. Todd: Oh, really. Jason: Things like that. Todd: OK, was it

发表于:2019-02-05 / 阅读(151) / 评论(0) 分类 原版英语对话1000个
学英语单词
amdec
arsy-versy
avascular necrosis
axis of plant site
be rolling in
blackings
boon reach
broadcaster madel
card stripping roller
catechu
combined statement of income and earned surplus
crank opening
cunnilinguss
curettage and grafting of bone tumor
curved embryo
dedicatorial
dynamically tuned gyro
englers
entironment
exiguate
false detection
feminiser
Freeman-Sheldon(syndrome)
fulfillment model
genus Bulnesia
genus Sarcobatus
governer controller shaft
granuliberin
gunnii
hidden line removal
high-stand deposit
ho hum
hold someone in abhorrence
hydroxyalkyl acrylate
industrial controller
industrial loan commitments
inert filler
intermediate boson
Jacaranda caroba
jot sth down
Kast's syndrome
left-stepping
leopardsbane
locate the respondent
loop-type pit-bottom
lunulatus
m. semispinalis
make one's disposition
medicamentum arcanum
Melinoe
moffo
montvals
nacrein
national standard thread
neckeraceous
non-ferrousmagnetic
over dominance (hull 1946)
ovine
Phlebotomus nankingensis
Pithecia
pole-are factor
prestopped
pretzeling
pronator teres
pulsed neutron
pyrophaeophorbide
quasi suspect classification
racemiform
Ranunculus rigescens
reerect
root deposit
round signaldisc
Rupan
s.i
Sandillon
santalyl acetate
search string
self-healing rings
skiou
slag-metal reaction
so that's that
sowblock
starchier
statoscope reading
suborders
take one's word
tangeretin
tauto
tree celandine
tricalcium phosphate
Trigonotis giraldii
trouser clip
truck-mounted drilling rig
underpairs
union operator
unsaturated link
unseaming
variable-length bit field
viser
WACM
weinbergs
xestia tamsi