音标：[,prәjtәj'θiәriәn] ；

a. 原兽亚纲的

n primitive oviparous mammals found only in Australia and Tasmania and New Guinea

词型变化：名词复数形式 : prototherians

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Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

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国家地理2008年

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Voice 1 Welcome to Spotlight. Im Katy Blake. Voice 2 And Im Christy VanArragon. 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 Small, shiny shells. Roun

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环球英语 Spotlight

【突破英文词汇】prot, proto -- first 第一

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突破英文词汇

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医务英语

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By Phil Mercer Sydney 03 December 2007 Kevin Rudd has been sworn in as Australia's new Prime Minister with an agenda of action on climate change and the repeal of unpopular industrial laws. The new government has signed the Kyoto Protocol on climate

发表于:2019-01-25 / 阅读(389) / 评论(0)

VOA常速英语2007年（十二月）

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In 2001, a team from Tel Aviv University argued that B. permians were almost identical to a strain of modern bacteria, Bacillus marismortui, found in the Dead Sea. 2001年，以色列特拉维夫大学的一个小组认为，二叠纪芽孢杆菌与一

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万物简史

【英语时差8，16】太阳为什么发光

What makes the sun shine? For a lot of folks, this is the kind of thing that doesn't even require explanation: it just does. But just being a commonplace phenomenon in no way explains it. Something must cause the sun to shine. And, in fact, there is

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英语时差8，16

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The British actor Alan Rickman has died of cancer at the age of 69. In movies, he won fame for his role as Severus Snape in the Harry Potter series and before that in films such as Truly Madly Deeply, Love Actually, Die Hard, Sense and Sensibility an

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学英语单词

abim

abnormality of parturient canal

about equal to sample

Abterode

acetylenic carbon

acidification of alkaline water

ambulator

anterior process

arenarioides

automatic storage allocation

aviators