[化] 甜桦油
[医] 香桦油, 水杨酸甲酯

科学美国人60秒 SSS Birch Trees Droop at Night with No Rays in Sight

Its easy to see that some plants change from day to nightflowers open and close, and even turn to face the sun. In 1880 Darwin noted that the leaves and seedlings of various plants appeared to engage in nighttime changes that he called sleep. But the

发表于:2018-12-24 / 阅读(69) / 评论(0)

2016年Scientific American(九)月

历届美国总统简介：拉瑟福德·伯查德·海斯

拉瑟福德伯查德海斯（RutherfordBirchardHayes，1822年10月4日1893年1月17日）是美国第 19任总统，生于俄亥俄州。南北战争时期，因军功屡次晋升，直至志愿军少将。战后开始政治生涯。两度当选国会

发表于:2018-12-30 / 阅读(121) / 评论(0)

历届美国总统简介

英文摇滚歌曲：Amberian Dawn - Birth Of The Harp

The ancient singer went lamenting through the forest heard the birch wailing Now drawing nearer he asks the sacred birch tree Why art thou weeping? Giving wood a shape of a harp Weep no more thou sacred birch tree grieve no more, my dear friend and m

发表于:2019-01-10 / 阅读(66) / 评论(0)

英文摇滚歌曲

VOA标准英语2008年-US Oil Companies Finding More Oil in Old Fields

The price of oil has dropped around 20 percent in recent weeks, but remains more than double what it was just a couple of years ago. The high price has given oil companies the incentive to revisit old fields long ago abandoned as unprofitable. As VO

发表于:2019-01-11 / 阅读(137) / 评论(0)

VOA标准英语2008年（八月）

新概念英语口语宝典第一册第30课:问路

Lesson 23 Understanding 第23课理解 A:Where on earth are we? A：我们到底在哪里？ R:We're close. I can feel it. R：快到了，我认为是。 A:You've been saying that for an hour. Pull over here,and I'll ask that man. A：你一个小时

发表于:2019-01-11 / 阅读(56) / 评论(0)

新概念英语口语宝典第一册

VOA慢速英语2009年-AMERICAN MOSAIC - Diane Birch's Youthful V

HOST: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Doug Johnson. This week on our program, we play some new music by Diane Birch And answer a question about a well known children's doctor .. But first, we report about how young peo

发表于:2019-01-11 / 阅读(71) / 评论(0)

VOA慢速英语2009年（九）月

2006年VOA标准英语-National Group Calls for Mandated Breath Analyz

By Paul Sisco Washington, DC 22 November 2006 watch MADD report In the United States, a group called Mothers Against Drunk Driving, or MADD, has led the way to safer roadways. The group's latest campaign would mandate proven technology to save lives

发表于:2019-01-12 / 阅读(114) / 评论(0)

2006年VOA标准英语（十一月)

美国国家公共电台 NPR Want Your Child To Eat (Almost) Everything? There Is A Way

MICHEL MARTIN, HOST: If you have a picky eater in your house, listen up. Getting kids to try new things and eat a healthy mix of good food has become such a struggle, but it doesn't have to be this way. As part of an NPR series, How To Raise A Human,

发表于:2019-01-17 / 阅读(51) / 评论(0)

2018年NPR美国国家公共电台6月

TED演讲:树木之间如何交流(5)

After the hour was up, I rolled down my window, and I checked for mama grizzly. 一小时的时间到了之后，我摇下了车窗，看看灰熊妈妈还在不在。 Oh good, she's over there eating her huckleberries. 哦太棒了，她在挺远的地

发表于:2019-01-18 / 阅读(56) / 评论(0)

TED演讲科学篇

TED演讲:树木之间如何交流(6)

And then in later experiments, we found the opposite, 而在随后的实验中，我们发现了相反的情况， that fir was sending more carbon to birch than birch was sending to fir, 花旗松给纸皮桦送的碳比纸皮桦给它的碳多， a

发表于:2019-01-18 / 阅读(54) / 评论(0)

TED演讲科学篇

英语听力：探索发现 2012-05-11 荒野求生:冰岛—13

Now Im on the lookout for fuel for a nice warm fire. Therere loads of these birch trees around here, and these are what Im looking for. I can tell theyre birch just because of the way theyre silver-limbed. This time of year in the winter, all the lea

发表于:2019-01-23 / 阅读(95) / 评论(0)

探索与发现2012年

英伦广角 2013-03-02 英国举行全国越野障碍赛马

Its among the most famous race courses in the world, but here in Aintree and alteration to the fences has been described by organizers as the biggest change in the history of the Grand National. The jumps will still look the same, but beneath the spi

发表于:2019-01-30 / 阅读(53) / 评论(0)

英伦广角

看电影学英语巴拿马裁缝(皮尔斯布鲁斯南)

主演：皮尔斯布鲁斯南杰弗里拉什杰米李柯蒂斯莱昂维埃拉布兰德格里森哈罗德品特凯瑟琳麦克康莫克丹尼尔雷德克利弗Lola Boorman大卫哈曼马克玛格奥莱斯马丁费雷罗John FortuneMartin SavageEdgard

发表于:2019-02-05 / 阅读(69) / 评论(0)

看电影学英语

英语歌曲:sweet about me

sweet about me ohh watching me, hanging by a string this time. 噢，看我，这个时候悬挂在一根绳子上 ohh easily, the climax of the perfect lie. 噢，简单的，一个完美谎言的高潮 ohh watching me, hanging by a string this time

发表于:2019-02-07 / 阅读(86) / 评论(0)

好听的英文歌曲

美国国家公共电台 NPR LA's 14th Factory Offers A Warehouse Full Of Art And 'Otherworldly' Experiences

KELLY MCEVERS, HOST: Now, NPR arts correspondent Mandalit del Barco is going to take us to a new pop-up art installation in Lincoln Heights. That's a neighborhood here in LA, just east of downtown. And she reports the exhibition by artist Simon Birch

发表于:2019-02-13 / 阅读(117) / 评论(0)

2017年NPR美国国家公共电台5月

英语听力精选进阶版 307

Boot Room Podcast - The Birch is back! THU 4 MAY 2017 Ian Stringer is joined by Alan Birchenall - and you'll also hear from Craig Shakespeare.

发表于:2019-02-16 / 阅读(62) / 评论(0)

英语听力精选进阶版

剑11阅读生词文章注解--passage3

剑桥雅思11发售后，很多同学都争相购买，老师们也是加班加点看新题，当下命题趋势变幻莫测，全靠剑桥系列指引方向。今天方振华老师为同学们带来剑11阅读生词文章注解。 stride 进步 ste

发表于:2019-02-19 / 阅读(96) / 评论(0)

雅思英语

《荒野求生》之跟着贝尔去冒险第14期:开始滑雪

The skis are taking the quick way down,and I'm hoping a birch tree will get me down just as fast. 把雪橇扔下去这样更快我希望桦树也能让我快点下去 The plan is tenuous,grab the top of the tree and use my weight to bend it over. 计

发表于:2019-02-21 / 阅读(52) / 评论(0)

荒野求生

纸牌屋第一季第146期:我只想找到她

I'll get in touch with Scott again tomorrow. 我明天会再联系斯科特 See if we can push this forward faster. 看能否改变局面 Thank you, Remy. 谢谢你，雷米 But you gotta let me do this my way. 但你得让我用自己的方式去干

发表于:2019-02-26 / 阅读(128) / 评论(0)

纸牌屋第一季

英语PK台第405期:科学告诉你"树精姥姥"真的存在!

1. Imagine you're walking through a forest. I'm guessing you're thinking of a collection of trees. Yes, trees are the foundation of forests, but a forest is much more than what you see, and today I want to change the way you think about forests. You

发表于:2019-03-04 / 阅读(109) / 评论(0)

英语PK台

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