[网络] 调速器扇形齿轮

Our school usually holds a spring sports meeting each year. The spring sports meet this year was held last Friday. Many students took an active part in it. So did I. The sports meet began at 8 oclock. After the opening, all kinds of races, both field

发表于:2018-11-28 / 阅读(292) / 评论(0) 分类 疯狂英语易背作文

[0:0]scratch抓,刮,擦 [0:9.1942]screen screw script seal屏幕,银幕 螺丝 剧本,广播稿 封条,图章 [0:46.5236]secondary sector secure segment次要的,第二的 扇形,部门 安全的,可靠的 部分,断片 [1:34.3195]select selfish semester semiconductor选择,挑选

发表于:2018-12-17 / 阅读(271) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

A Stationary Satellite, part 2 A geostationary satellite orbitsthe planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! you say. Id like to have one of those about twenty feet over my house. S

发表于:2018-12-31 / 阅读(164) / 评论(0) 分类 英语听力文摘 English Digest

In the 17th century, the French scientist Pierre Gassendi knew that light traveled faster than sound. When a gun fired far away, he could see the flash of gunshot long before he heard the report. Gassendi tried to measure the speed of sound by clocki

发表于:2018-12-31 / 阅读(211) / 评论(0) 分类 英语听力文摘 English Digest

Modern English 洋话连篇(四十九)MP3 下载

发表于:2019-01-03 / 阅读(150) / 评论(0) 分类 Modern English 洋话连篇

By Paige Kollock Washington 28 June 2006 Surfing has fascinated Americans for decades, and in some parts of the country has given birth to its own surfing culture and dialect. Some people grow up surfing, while others come to it from other sports li

发表于:2019-01-06 / 阅读(230) / 评论(0) 分类 2006年VOA标准英语(六月)

Jonathan: Have you ever heard about speed dating? Jeff: Speed dating? No. I have no idea. Fast....? Jonathan: This is a kind of thing that started up in the last number of years, and what happens is it there's an organizer and you go to some dates in

发表于:2019-01-11 / 阅读(190) / 评论(0) 分类 原版英语对话1000个

A: Why'd you pull me over? B: Are you aware that you drove through a red light? A: I ran a red light? B: Yes, you did. A: I apologize, but I didn't realize that I did that. B: Weren't you taught that yellow means slow down, not speed up? A: I did lea

发表于:2019-01-15 / 阅读(179) / 评论(0) 分类 英语情景对话-驾驶

A: Is there a problem, officer? B: I stopped you for driving through a red light. A: Did I really? B: You didn't know? A: I had no idea that I ran it. B: Don't you know that yellow means slow down? A: Yes, sir. B: Why'd you speed up instead? A: I rea

发表于:2019-01-15 / 阅读(208) / 评论(0) 分类 英语情景对话-驾驶

Find the problem. What kind of person are youone who focuses on accuracy or one who focuses on frequency? the first step is to recognize your problem and go to work no it. Think about situations where youve used English and how you felt about making

发表于:2019-01-31 / 阅读(165) / 评论(0) 分类 英语杂谈

Whats a Fly Doing in Antarctica ? 南极有苍蝇? Sometimes the biggest finds are the smallest finds. Researchers examining a segment of siltstone taken from ground along the Beardmore glacier in Antarctica found something unexpected. They found a

发表于:2019-02-16 / 阅读(164) / 评论(0) 分类 英语听力文摘 English Digest

Ah! Good evening, madam! Welcome! Huh? 啊!晚上好,女士!欢迎光临!啊? Ladies and gentlemen, may I have your attention, please? May I present to you the duchess of Matureville...Chloe. 先生们女士们,请将注意力集中到这里

发表于:2019-02-19 / 阅读(235) / 评论(0) 分类 咱们裸熊

Hey, Madaonna's could be here all week long. 嘿 麦当娜会来做客一周 It's Madaonna week and she sent this message she kicked out. 这是麦当娜周 她发来了这条信息 Here she is.First you love me and I let you in.Make me feel like tha

发表于:2019-02-22 / 阅读(239) / 评论(0) 分类 艾伦脱口秀

Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量,包括物体的,微粒的或质点集的运动等。 势能(Potential energy )是位置的函数,例如把一个

发表于:2019-02-24 / 阅读(158) / 评论(0) 分类 英语听力文摘 English Digest

E. T. Phoned. Now What? 外星人来电 Suppose one day scientists pick up a transmission they think is generated by alien s . Now what? Do we build a landing strip and break out the welcome wagon? Well heres the thing about picking up alien broadcas

发表于:2019-02-24 / 阅读(192) / 评论(0) 分类 英语听力文摘 English Digest

Reentry Heat [Why does a space shuttle get hotter on reentry than on liftoff?] 能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗?来一起听听吧。 M:Dolle,we now know that the space shuttle Columbia burned up whe

发表于:2019-02-24 / 阅读(169) / 评论(0) 分类 英语听力文摘 English Digest

世界上跑得最快的是什么?答案是光速。它每秒能跑186,280英里。因为即使在太空中,光速也大致相同,所以光年也就用于描述不同星球之间的距离。记住了哦,光年是距离单位,不是时间单位

发表于:2019-02-24 / 阅读(248) / 评论(0) 分类 英语听力文摘 English Digest

Zippy Aliens 爱因斯坦的狭义相对论认为物体的运动速度越接近光速,时间越慢。在1971年,物理学家理查德基廷和乔伊哈夫勒验证了这个假想。他们将4个极为精确的原子钟放在一架普通航行的飞

发表于:2019-03-09 / 阅读(213) / 评论(0) 分类 英语听力文摘 English Digest

The Front End of the Earth 火流星看上去非常明亮,像条闪闪发光的巨大火龙,发着沙沙的响声,有时还有爆炸声。有的火流星甚至在白天也能看到。火流星的出现是因为它的流星体质量较大(质量大

发表于:2019-03-09 / 阅读(236) / 评论(0) 分类 英语听力文摘 English Digest

Skinny Legs and All Why do horses have skinny legs? Find out on this Moment of Science. Why do horses have skinny legs? Okay, they arent entirely skinny its mostly the (1)bottom half, with a big muscle up at the top.Thats odd. Human legs are kind of

发表于:2019-03-09 / 阅读(243) / 评论(0) 分类 英语听力文摘 English Digest
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