un. 蜗杆螺纹头数

TOP50 初级英文绘本 48 Diary of a Worm

OliverJeffers生在澳大利亚西部，但成长于北爱尔兰的贝尔法斯特，现在纽约。是个插画师，也是个作家。从 2004 年至今，他在动画界获奖无数。他的画充满童真，有点淡淡的忧伤，但又有浓烈的

发表于:2018-12-06 / 阅读(201) / 评论(0)

TOP50 初级英文绘本

快乐英语第七册 UNIT1-3

[00:06.69]Unit 1 [00:08.32]What are you doing? [00:10.61]Lesson 3 [00:14.45]Learn to Say [00:17.26]Who's that boy? [00:19.80]He's Dick. [00:22.15]What's he doing? [00:24.43]He's cooking noodles. [00:27.56]Who's she? [00:29.98]She's Helen. [00:32.65]W

发表于:2018-12-13 / 阅读(180) / 评论(0)

快乐英语第七册

英语口语1+1:The early bird catches the worm

发表于:2018-12-24 / 阅读(218) / 评论(0)

英语口语1+1

Eztalk美语【77】Winter Worm Summer Grass 冬虫夏草

BB starts adding herbs into the batch Robert: What are those things you're putting in there? They look like little worms! BB: Actually, it's a kind of fungus... Robert: Fungus? I'm supposed to eat fungus? BB: Sure...It's called Winter Worm Summer Gra

发表于:2018-12-25 / 阅读(158) / 评论(0)

Eztalk美语会话

儿童英语小故事 23. She Sees a Worm

The worm crawls on the ground. It crawls slowly. She watches it. She picks it up. It wiggles in her hand. She puts it in her mouth. It wiggles in her mouth. She takes it out of her mouth. She puts it back on the ground. It crawls into a hole.

发表于:2018-12-31 / 阅读(309) / 评论(0)

儿童英语小故事

地道英语在线听-Worm 一种电脑病毒

A computer worm is bad news Helen: Hello welcome to Real English from BBC Learning English. I'm Helen. Zo: 大家好，我是刘佳。 Helen: Today we're going to look at words and phrases that have recently become part of the English language. Zo: 地道英语

发表于:2019-01-02 / 阅读(216) / 评论(0)

地道英语在线听

Scientists Discover Fossil of Strange Sea Worm

Scientists found a prehistoric ancestor of an arrow worm among a group of fossils at two national parks in Canada. The fossils were found in what is now British Columbia, but was once an ocean. The sea worm was 10 centimeters long and had 50 spines o

发表于:2019-01-02 / 阅读(202) / 评论(0)

2017年VOA慢速英语(八)月

鹅妈妈童谣 76 Six Little Mice Sat Down to Spin

Six Little Mice Sat Down to Spin Six little mice sat down to spin, Pussy passed by, and she peeped in. What are you doing, my little men? Making coats for gentlemen. Shall I come in and bite off your threads? No, no, Miss Pussy, you'll bite off our h

发表于:2019-01-09 / 阅读(384) / 评论(0)

鹅妈妈童谣

北京仁爱教育七年级下册词汇 01

[by:喜欢rrting.com，请把rrting.com告诉你QQ上的5位好友，多谢支持！] [00:00.00]Unit 5 [00:03.08]I usually go to school by bike. [00:08.83]usually wake get up early [00:14.37]通常醒来起床早的 [00:19.91]today term desk taste

发表于:2019-01-10 / 阅读(262) / 评论(0)

北京仁爱英语

VOA标准英语2014--Carter Center Marks Progress in Fight Against Guinea Worm, River Blindness

Carter Center Marks Progress in Fight Against Guinea Worm, River Blindness CHICAGO Guinea worm disease and river blindness are among 17 tropical diseases the World Health Organization considers neglected. Thanks to the efforts of the Atlanta-based Ca

发表于:2019-01-14 / 阅读(139) / 评论(0)

VOA标准英语2014年(四月)

美国国家公共电台 NPR Why The World Isn't Close To Eradicating Guinea Worm

Why The World Isn't Close To Eradicating Guinea Worm ARI SHAPIRO, HOST: For the past few years, the world has been on the edge of one of the biggest medical triumphs of modern history. A global effort has nearly wiped out the Guinea worm, a horrific

发表于:2019-01-17 / 阅读(232) / 评论(0)

2016年NPR美国国家公共电台8月

英国学生科学读本第67期:羊毛漫谈(2)

A single fibre of wool is very weak, but by means of a machine these fibres are twisted together to make woollen yarn, which is a strong, loose thread. This twisting together of the fibres is called spinning. The fibres are curly or wavy, and are als

发表于:2019-01-17 / 阅读(153) / 评论(0)

英国学生科学读本

英语听力—环球英语 1256 Ending Guinea Worm Disease

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Hyacinth Igelle is a farmer. He liv

发表于:2019-01-19 / 阅读(139) / 评论(0)

环球英语 Spotlight

英语听力：自然百科虫虫兄弟—13

She spun her snell with silkglands on the underside of her abdomen. The threads harden on contact with air. The trap's set, but she's treading carefully. The web's only sticky in places. She can move around, but others can't. The first bite of the da

发表于:2019-01-22 / 阅读(173) / 评论(0)

自然百科2013年

VOA常速英语2008年-Guinea Worm Eradication Target Set for 2009

By Gilbert da Costa Abuja 04 April 2008 The global campaign to eradicate the debilitating Guinea worm disease continues, with hopes for eliminating it by 2009. Four countries ended transmission of the disease in 2007. Gilbert da Costa attended a cere

发表于:2019-02-04 / 阅读(211) / 评论(0)

VOA常速英语2008年（四月）

学个词Learn a Word 第693期 Worm

今天我们要学的词是worm。 Worm, 是虫子的意思，用在电脑上，指的就是蠕虫病毒。四月一号愚人节，也是一种恶性电脑蠕虫病毒发作的日子。 Computer experts are watching warily as the Conficker worm strik

发表于:2019-02-05 / 阅读(181) / 评论(0)

英语单词荟萃

英国学生科学读本第19期:一卷棉线

Lesson19 A reel of cotton 第19课一卷棉线 Let us take some of the white cotton off this reel, and try to find out what the thread of cotton is made of. We can pull the white thread to pieces, and then we see that it is made of many short fibres

发表于:2019-02-13 / 阅读(229) / 评论(0)

英国学生科学读本

环球英语 — 128：Stopping Guinea Worm Disease

Voice 1 Thank you for joining us for todays Spotlight. Im Rebekah Schipper Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Voice 1 Hyaci

发表于:2019-02-14 / 阅读(158) / 评论(0)

环球英语 Spotlight

流行美语第 89 课

今天Larry 和Li Hua 下课以后一起去吃午饭，Li Hua 会学到两个常用语：threads 和load up。 (campus noise) LL: Hey, Li Hua, those are nice threads you're wearing. LH: Threads? - 那不

发表于:2019-02-20 / 阅读(257) / 评论(0)

美国之音《流行美语》

第423期:什么是"Earworm"原来我们每个人都有

相信我们每个人都有被神曲洗脑的经历，这种感觉就是我们的大脑中总是不自觉的会响起一阵阵旋律，完全不受自我意识的控制。英文中有一个非常有意思的单词：earworm,直译过来就是耳朵虫。

发表于:2019-03-02 / 阅读(294) / 评论(0)

卡卡课堂早餐英语

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aerial loading coil

allylic polymerization