回动[回位]弹簧,释放弹簧,回程用弹簧

retracting spring的用法和样例：

例句

If we let go, the elastic energy, as the spring passes through the equilibrium point, is converted to kinetic energy.如果我们释放弹簧，那么弹簧经过平衡点时，弹性能就转变为动能。

15 JILL STUART SPRING SHOW

Jill Stuart combines the thrill of the 50s with the fun of the 80s for Spring 2001. Off-the-shoulder looks and fitted capris, micro minis and cinched waist, Madonna and 1)Brigitte Bardot; Jill Stewart

发表于:2018-11-28 / 阅读(255) / 评论(0)

疯狂英语2001年

Spring

Springs are not always the same. In some years, April bursts upon Virginia hills in one 1) prodigious leap - and all the stage is filled at once, whole 2) choruses of tulips, 3) arabesques of 4) forsy

发表于:2018-11-28 / 阅读(139) / 评论(0)

疯狂英语2002年

Thoughts on the Spring Festival

Lesson 31 Thoughts on the Spring Festival Text A My first Spring Festival in north China was a bit of a shock. Where was the spring? There was snow on the ground and ice on the Summer Palace lake and

发表于:2018-12-02 / 阅读(303) / 评论(0)

中级口语教程

UNIT 1 Spring Is Coming! Lesson 2: It's Getting Warmer!

[ti:UNIT 1 Spring Is Coming! Lesson 2: It's Getting Warmer!] [0:00.188]UNIT 1 第一单元 [0:01.922]Spring Is Coming! 春天来了 [0:03.562]Lesson 2: 第2课： [0:05.109]It's Getting Warmer! 天气暖和了！ [0:07.284]THINK ABOUT IT! 想一想 [

发表于:2018-12-13 / 阅读(151) / 评论(0)

外研社新标准初中英语八年级上(2013版)

UNIT 1 Spring Is Coming! Lesson 3: Postcards!

[ti:UNIT 1 Spring Is Coming! Lesson 3: Postcards!] [0:00.135]UNIT 1 第一单元 [0:01.749]Spring Is Coming! 春天来了 [0:03.318]Lesson 3: 第3课： [0:05.111]Postcards! 明信片！ [0:08.114]Dear Jenny, 亲爱的珍妮： [0:09.504]Today is Mar

发表于:2018-12-13 / 阅读(123) / 评论(0)

外研社新标准初中英语八年级上(2013版)

美文欣赏-No More Silent Spring

17 No More Silent Spring Rachel Carson was a scientist and a bird watcher. She noticed, in the late '50s, the gradual disappearance of some birds, and linked it to our use of 1)pesticides. She wrote a book about her fear that 2)robins would sing no

发表于:2018-12-14 / 阅读(126) / 评论(0)

美文欣赏

Wind is the characteristic of spring.

本讲为2005年下半年新的教学内容，请对照教材听录音！ Wind is the characteristic of spring. Women _being_ (be) the weaker and dependent sex , it is only natural that they should cr

发表于:2018-12-15 / 阅读(99) / 评论(0)

自考英语（一）78讲

CNN 2010-02-10

To vaccinate or not to vaccinate? It's a debate that raged among parents and one that's divided the autism community. Now one journal that put out a paper showing an autism vaccine link is retracting it. CNN's senior medical correspondent Elizabeth C

发表于:2018-12-20 / 阅读(97) / 评论(0)

CNN2010年(二)月

Faith轻松电台：Spring Is Here春天来了

Welcome to Spring at Faith Radio Online-Simply to Relax, Im Faith. Today, look at the blue sky, hear the grass growing beneath your feet, inhale the scent of spring, let the fruits of the earth linger on your tongue, reach out and embrace those you

发表于:2019-01-02 / 阅读(138) / 评论(0)

Faith轻松电台

Spring 春-心灵鸡汤

Spring 春 Springs are not always the same. In some years, April bursts upon Virginia hills in one prodigious leap and all the stage is filled at once, whole choruses of tulips, arabesques of forsythia, cadenzas of flowering plum. The trees grow leav

发表于:2019-01-03 / 阅读(370) / 评论(0)

趣味英语

中英翻唱:It Might As Well Be Spring 我象一只无歌可唱

It Might As Well Be Spring 我象一只无歌可唱的夜莺演唱者：Laura Fygi 第18届奥斯卡最佳电影歌曲，这个版本是荷兰萝拉歌手翻唱的。歌曲原唱是60年代赫赫有名的大牌男星弗兰克-辛纳特拉（Frank Si

发表于:2019-01-03 / 阅读(63) / 评论(0)

中英翻唱歌曲

英语新闻视频 Gearing up for the Spring Festival

Red couplets, red lanterns, red paper-cuts, red fireworks, red Chinese knots and more there's even red underwear. But it's not just red that's all around there are rats, rats and more rats. According to the Chinese lunar calendar, the upcoming Sprin

发表于:2019-01-05 / 阅读(98) / 评论(0)

英语新闻视频

Lesson 120 - SPRING CHICKEN / GOOSE BUMPS

spring chicken goose bumps 古今中外，大家都认为年轻少女是美丽和具有青春活力的象征。美国人在这方面似乎更加敏感，希望能够永保青春。一般人都尽量不让

发表于:2019-01-06 / 阅读(124) / 评论(0)

美国习惯用语

英文歌曲:It Might As Well Be Spring

It Might As Well Be Spring Sophie Milmanm I'm as restless as a willow in a windstorm I'm as jumpy as a puppet on a string I'd say that I had spring fever But I know it isn't even spring I'm as starry eyed and gravely discontented Like a nightingale w

发表于:2019-01-09 / 阅读(109) / 评论(0)

好听的英文歌曲

白领英语晨读-141 Dance of Spring　春之舞

Dance of Spring Springs are not alway the same. In some years, April bursts up Virginnia hills in one prodigious leap-and all the stage is filled at once, whole chorusesof tulips, arabesques of forsythia,cadenzas of flowering plum. The tress grow le

发表于:2019-01-17 / 阅读(156) / 评论(0)

白领英语晨读

英语歌曲:Spring came,rain fell--春天來了，雨將至

Spring came,rain fell--春天來了，雨將至 waiting for the big fall 等待將至的大雨 to take us all 把我們帶走吧 quiet nights and desperate love 寂靜的夜，絕望的愛 we need it all 我們都需要麽？ spring came rain fell 你看

发表于:2019-02-03 / 阅读(78) / 评论(0)

好听的英文歌曲

Santos rejects Sao Paulo bid for Brazil star Ganso

RIO DE JANEIRO, Aug. 21 (Xinhua) -- Santos confirmed on Tuesday it had rejected a five-million-dollar offer from Sao Paulo for Brazil international midfielder Paulo Henrique Ganso. Santos said in a statement on its Twitter account that it had receive

发表于:2019-02-08 / 阅读(82) / 评论(0)

英语新闻

新闻纵贯线 Today updated 20:00 2018/06/22

一挑多！贸易战风云 Welcome to 'Today' - an hour of world news and analysis -- Today keeps you informed and inspired. I'm Suyi Coming up： IMF director Christine Lagarde has warned that the Trump administration's trade policies are likely to

发表于:2019-02-15 / 阅读(49) / 评论(0)

The Beijing Hour 新闻纵贯线

Spring’s Here--Finally

The waterfall behind our house at the lower end of Lake Edenwold is a thundering cascade of spring runoff from the melting snows of winter. It's been a three-week drum roll leading up to today, when the cymbal will crash and the earth will arrive at

发表于:2019-02-17 / 阅读(144) / 评论(0)

阅读空间

趣味青春英语电台第360期:Travelling for Spring Festival

Topic: Parts of China travelling 关于中国的旅行 Travelling for Spring Festival 春节期间的旅行

发表于:2019-02-23 / 阅读(89) / 评论(0)

趣味青春英语

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

a general strike

actuator mechanism

actural measuring width of goods