单词：procambium
[医] 前形成层, 前新生层
component cells have begun to be differentiated.
单词：procambium 相关文章
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英文魔法师字源大挪移
By Mike O'Sullivan 27 July 2007 United Nations Secretary-General Ban Ki-moon is on a two-day visit to California to discuss climate change and other global challenges. Mike O'Sullivan reports from San Francisco, the secretary-general says the United
2007年VOA标准英语（七月）
[00:17.36]Figure On The Proch [00:26.40]门廊鬼影 [00:36.51]Back in the early 1980s my aunt lived in a house [00:41.27]that was literally located in the middle of nowhere. [00:46.05]It used to really creep my younger brother and me out, [00:50.28]but
英语灵异故事
[00:17.23]Figure On The Proch [00:26.43]门廊鬼影 [00:35.14]I lay back down and tried to go back to sleep. [00:39.57]After I had lain there for about 5 minutes, [00:43.12]I started to hear a tapping sound. [00:45.77]I listened for a minute, [00:48.07]
英语灵异故事
You know, I just wanna say one brief thing about something the previous speaker said. I didn't wanna spend too much time on that 'cause I don't think it's important enough. But one thing is worth considering. He's the -- He's the nominal head of an
名人演讲
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有声畅销书-秘密
Observers are saying Emmanuel Macrons election as president of France is a victory for Europe. The election was not close. Macron received 66 percent of the vote compared to Marine Le Pens 34 percent. The president of the European Commission congratu
2017年VOA慢速英语(五)月
Pro-independence parties have won a majority of parliamentary seats in the northern Spanish area of Catalonia. The results are a victory for supporters of the movement to break away from Spain. However, pro-independence parties won just two seats abo
2017年VOA慢速英语(十二)月
And now for Money Myths, a new feature from Michelle Singletary. She is Day to Days personal finance contributor, and a regular Tuesday guest. And as the title implies, Michelle will try to correct some financial myths we all may have. She spoke ear
2005年NPR美国国家公共电台
Larry到李华住的地方，去看她新领养的猫咪小雪球。今天李华会学到两个常用语：mental和pro. LL: Snowball is adorable! She's so little and fluffy! LH: 就是啊，我的猫咪
美国之音《流行美语》
By Peter Fedynsky Washington, D.C. 19 February 2007 watch Appropriations report On the same day that the U.S. House expressed its disapproval of sending more troops to Iraq, the White House asked lawmakers to approve additional money for Iraq's econ
2007年VOA标准英语（二月）
By Brian Wagner Miami 22 September 2009 A supporter of Honduras' ousted President Manuel Zelaya runs during clash with riot police in front of Brazil embassy in Tegucigalpa, 22 Sep 2009 Riot police in Honduras on Tuesday broke up marches by supporte
VOA标准英语2009年(九月)
Apple is believed to have delayed plans to produce a 12.9inch 'iPad Pro' so it can keep up with demand for its 5.5inch iPhone 6 plus handset. 据悉，苹果推迟12.9英寸的iPad Pro的生产计划，以保证满足5.5英寸的iPhone 6 plus的市场需
英语新闻
今天我们要学的词是pro-life。 Pro-life意思是反对妇女有堕胎的选择权。Pro-life的对立面是 pro-choice，支持妇女的堕胎权。美国总统奥巴马不久前在圣母大学发表毕业演讲。Hundreds of pro-life activis
英语每日一词
By Jeff Swicord Washington 03 November 2009 For decades, AIPAC (The American Israel Public Affairs Committee) has been the pro-Israel lobby in the United States, bolstered by a massive membership -it says 100,000 - among America's six million Jews.
VOA标准英语2009年(十一月)
Apple Inc said its iPad Pro will be available to order online on Wednesday and arrive at stores later this week. 苹果公司近日宣布，其最新产品iPad Pro平板电脑周三开始可以从网上订购，并于本周稍晚在苹果商店开售。
英语新闻