音标：[,pәust'keivә,-kɑ:vә] ；

n. [动](畜类的)后腔静脉

n receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart; formed from the union of the two iliac veins

词型变化：名词复数形式 : postcavas

【近义词】

inferior vena cava下腔静脉

EXPLORATIONS - Wiley Post: The First Pilot to Fly Around the

EXPLORATIONS - Wiley Post: The First Pilot to Fly Around the World Alone By Paul Thompson Broadcast: Wednesday, September 14, 2005 ANNOUNCER: Now the VOA Special English program, Explorations. Today S

发表于:2018-12-01 / 阅读(178) / 评论(0)

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2018-12-04 / 阅读(103) / 评论(0)

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Lesson 18 Is It Near the Post Office?

Mary: Excuse me. Can you tell me the way to the train station, please? Jack: Sure. It's only three blocks down the street. Mary: Is it near the post office? Jack: No. It's next to the fire station. Mar

发表于:2018-12-08 / 阅读(536) / 评论(0)

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023 post office Words Post office parcel letter send stamps airmail surface mail registered mail envelop counter philately postman/woman deliver(y) letterbox queue Phrases Send a parcel Seal an envelop Weigh a parcel Check the weight Pay postage Sur

发表于:2018-12-12 / 阅读(114) / 评论(0)

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发表于:2018-12-13 / 阅读(298) / 评论(0)

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发表于:2018-12-26 / 阅读(94) / 评论(0)

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World Post Day happens each year on the 9th of October. This date is the anniversary of the Universal Postal Union (UPU), which started in 1874 in Switzerland. The UPU was the start of the global communications revolution; people could write to other

发表于:2018-12-29 / 阅读(158) / 评论(0)

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发表于:2018-12-30 / 阅读(123) / 评论(0)

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My husband asked me to go to the post office to mail his resume in anticipation of a job interview. He instructed me to send it the fastest way possible. Struck by the urgency in his voice, I grabbed

发表于:2019-01-03 / 阅读(151) / 评论(0)

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My teen-age daughter was preparing to return home after having visited her grandparents for a few weeks one summer. Her grandfather gave her 12 post cards .

发表于:2019-01-04 / 阅读(152) / 评论(0)

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Part One Sending a Letter第一部分寄信Clerk: Good afternoon, Miss. Can I help you? 小姐，下午好。要帮忙吗？ Mary: Yes. I want to send this letter to Guangzhou. 是的。我想把这封信寄往广州。 Clerk: By airmail or surface

发表于:2019-01-11 / 阅读(117) / 评论(0)

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By Breshna Omarkhel/Penelope Poulou Washington 27 October 2009 Cavalia A show that has charmed millions of people in other parts of the world is now playing in the United States. What makes Cavalia special is that the stars are horses, riders and ac

发表于:2019-01-14 / 阅读(106) / 评论(0)

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My husband asked me to go to the post office to mail his resume in anticipation of a job interview. He instructed me to send it the fastest way possible. Struck by the urgency in his voice, I grabbed a handful of change and dashed out the door. Arriv

发表于:2019-01-25 / 阅读(118) / 评论(0)

趣味英语

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Now the VOA Special English program EXPLORATIONS. Today Shirley Griffith and Doug Johnson tell about pilot Wiley Post. He set new records when he flew his own airplane around the world in nineteen thirty-three. (MUSIC) VOICE ONE: It was nineteen thir

发表于:2019-01-31 / 阅读(225) / 评论(0)

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Camacho arrives in China for new post

BEIJING, Aug. 13 (Xinhua) -- Spaniard Jose Antonio Camacho arrived in Beijing on Saturday morning for his new post as coach of the Chinese national soccer team. Surrounded by flashlights from local media at the Beijing Capital International Airport,

发表于:2019-02-01 / 阅读(147) / 评论(0)

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Hariri will not quit race to the PM's post

BEIRUT, Jan. 20 (Xinhua) -- Caretaker Lebanese（黎巴嫩） Prime Minister Saad Hariri said Thursday he will not quit the race to form Lebanon's new cabinet. In a brief speech broadcasted in the local Future TV, Hariri said his Future Movement parl

发表于:2019-02-03 / 阅读(109) / 评论(0)

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到了年底，各类年度词汇评选都开始宣布结果。此前，我们报道过，Brexit(英国脱欧)被选为柯林斯词典的2016年度词汇。昨日，牛津词典宣布其2016年度词汇为post-truth(后真相)，单独发布的英美年

发表于:2019-02-09 / 阅读(132) / 评论(0)

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Listen to the dialogues and fill in T for True, F for False. 英语对话1 A:What kinds of post do you want, first-class post or second-class post? B:First-class please. 英语对话2 A:How do you want your parcel to be delivered, by sea or by air? B

发表于:2019-02-17 / 阅读(199) / 评论(0)

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My teen-age daughter was preparing to return home after having visited her grandparents for a few weeks one summer. Her grandfather gave her 12 post cards . Here, write us a few lines every month, he said. Months passed and the cards remained unused-

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学英语单词

All is well that ends well

architectonicids

belaved

bell tent

Benedict-Franke's method

case for fresh water cooler

cellular double bottom