单词：quaterpolymer
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情景对话： Let's look for a well. 我们去找一口井吧。 We found a well at daybreak. 我们在黎明时分找到了一口井。 知识点笔记： 1、Daybreak 黎明 【例句】 We need to get there before daybreak if you want to get fro
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t
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This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
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Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c
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Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s
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今后，大家对贝克汉姆的称呼就不光是球星或者型男了，他多了一项头衔夜店老板。 David Beckham is a soccer star by trade, but apparently he also wants to add restaurant owner to his resume. He allegedly hopes to open a
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This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
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Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
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This is AP News Munite. UN officials say more than 73,000 people in Haiti have received food last week but many more still wait. Some desperate crowds turn to looting to get what they need six days after the earthquake. Haitian authorities say they h
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Everyday Grammar: In, On, and At 日常语法:In,On和At的用法 When English speakers talk about time and place, there are three little words that often come up: in, on, and at. These common words are prepositions that show a relationship between t
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Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o
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'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded
VOA标准英语2016年(二月)
A: Does it look like a good fit? B: It's definitely your size. A: Yes, it is very nice. I'll take it. B: How do you prefer to pay? A: Let me use my credit card. B: Now, if you'll just sign here. A: No problem. B: I hope you enjoy your purchase. Good-
购物英语对话
A: Does it look too small? B: It fits you to a T. A: I agree. I'm going to buy it. B: Cash or charge? A: I'll charge it. B: Sign here, please. A: There you go. B: Good-bye, and thank you for shopping here.
购物英语对话
A: What do you think? B: It looks great. A: I would like to purchase it. B: Will this be cash or charge? A: Here, take my credit card. B: Just sign here, please. A: Sure. Here you go. B: Here's your receipt. Have a nice day.
购物英语对话
A: Excuse me. Could you help me with something? B: I'll certainly try. A: I'm looking for a nice sweater. B: What size do you wear in a sweater? A: Medium is my size for shirts and sweaters. B: Here's a medium. What do you think? A: I like it. Where
购物英语对话
By Greg Flakus Mexico City, Mexico 07 April 2006 watch Waterless Toilet report At the recently held Fourth World Water Forum in Mexico City, hundreds of governmental agencies, international organizati
2006年VOA标准英语（四月）
The Caterpillar The Caterpillar looked at Alice and said nothing. Perhaps it doesn't speak', Alice thought. But at last it did speak. Who are you? it asked. It was a hard question. Alice answered, but not very quickly: I--I don't know. I knew who I w
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她是来自爱尔兰的The Celts，她的声音纯美安静，为我们洗涤尘世的浮躁。 你可以随她的歌声，逡游于广袤深洋，崇山峻岭，阔邃林间，无际平畴，万里苍穹，甚至紧紧包裹着你的大气当中，只有配得上天籁称誉的声音，才能如此勾起你飞翔的潜意识。是的，就是恩雅，洁白无暇
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