单词：agonist
[化] 兴奋剂; 激动剂
n. a muscle that contracts while another relaxes
n. (biochemistry) a drug that can combine with a receptor on a cell to produce a physiological reaction
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Long, Long Ago Tell me the tales That to me were so dear, Long, long ago, Long, long ago; Sing me the songs I delighted to hear, Long, long ago, Long ago. Now you are come, All my grief is removed, Le
英语歌曲第十一辑
INTRODUCTION TO ACT I Today on TUNING IN THE U.S.A., Ellen Stewart is shopping for an antique piano bench. Ellen wants a fine old bench to sit on when she plays the piano. She goes to Mr. Rosens antique store in Riverdale and finds a beautiful bench.
欢乐美语
WHITE HOUSE President Donald Trumps administration wants to shut down U.S. government radio stations that announce official time, a service in operation since World War II. WWV and WWVB in the state of Colorado and WWVH on the island of Kauai in the
VOA标准英语2018年(九月)
说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 nearly The boy nearly fell into the ri
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英语口语天天练-大米
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation
Scientific American(四)月
Idiom: Many moons ago ( long time ago ) Hit the book: Monument Site Weigh Formation Statue Crop Alien Flatten Tornado
趣味青春英语
banister, ['bnistə] n （楼梯的）栏杆＝balustrade＝rail 【记】ban挡住，ister东西－挡住的东西－栏杆 【类】staircase:banister＝garden:fence楼梯需要栏杆保护＝花园需要栅栏保护
不择手段背单词
Three radio stations in the United States mainly broadcast one thing: the official time. The three are radio stations WWV and WWVB, in the state of Colorado, and WWVH, on the island of Kauai in Hawaii. They send out signals that are used by millions
2018年VOA慢速英语(九)月
By Alan Silverman Hollywood 03 June 2006 Jennifer Aniston and Vince Vaughn co-star as a couple whose relationship crumbles and it's only when it seems too late that each realizes what might be lost if
2006年VOA标准英语（六月）
Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol
Scientific American(八)月
音乐咖啡厅:Sharon Corr - So long ago 相关介绍：继可儿家族的主场Andrea推出自己的个人专辑《Ten Feet High》后，作为可儿家族的老大姐Sharon，在这几年也开始筹备自己的新专辑《Dream Of You》。 Sharo
音乐咖啡厅
继可儿家族的主场Andrea推出自己的个人专辑《Ten Feet High》后，作为可儿家族的老大姐Sharon，在这几年也开始筹备自己的新专辑《Dream Of You》。 Sharon Corr是可儿家族这个家族乐团中的大姐，家中
天籁音乐
Next year will mark the 110th anniversary of a U.S. government agency that is unknown to most Americans. Yet its work affects their everyday lives in countless ways. Generations knew the agency as the National Bureau of Standards. When it was founded
VOA标准英语2010年(十一)月
GQ magazine is marking the 10th anniversary with its annual Man of the Year issue. And this year, there are three separate covers, one featuring actor Vince Vaughn, another with popular recording arti
访谈录
10 Things I Wish I Knew 10 Years Ago Stay in tune with your spirit. Be calm and think. Listen to your inner voice. Anticipate and plan. Take 100% responsibility for your life. Lean into your struggles. Act with courage. Maintain an open mind. Practic
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本期内容： Hotel search firm Trivago has warned investors of weaker-than-expected revenue growth in 2017, due to lower spending from hotels and other travel companies. The company, which is headquartered in Germany, makes money by charging hotel
夏说英语新闻晨读
Tell me, Mechanist, is it true? Does none of it bother you? Once upon a time Upon a time behind us The mechanist inclined Clockworks of time define us Who you are, who you are; Merely springs that tick The time of things away The cry from the beast i
英文摇滚歌曲