悬吊夹,悬吊夹板

Medieval siege 中世纪攻城战-7

Renaud was left with no alternative but to hope that a couple of planks will be strong enough to splint the weakened throwing arm. Finally work starts on raising the great trestle s. With each passing

发表于:2018-12-07 / 阅读(45) / 评论(0)

中世纪攻城战

新概念英语第三册 17 The longest suspension bridge...

Lesson 17: The longest suspension bridge in the world 世界上最长的吊桥 Listen to the tape then answer the question below. 听录音，然后回答以下问题。 How is the bridge supported? Verrazano, an Italian about whom little is known, sa

发表于:2018-12-08 / 阅读(721) / 评论(0)

新概念英语第三册

VOA慢速英语2015 3-D打印设备可以帮助罕见呼吸障碍儿童呼吸

3-D Printed Device Helps Children with Rare Breathing Disorder 3-D打印设备可以帮助罕见呼吸障碍儿童呼吸 You may have heard about a process called 3-D printing. It is where a machine creates a three-dimensional object -- one with heig

发表于:2019-01-12 / 阅读(52) / 评论(0)

2015年VOA慢速英语(五)月

2006年VOA标准英语-New Electric Suspension System Smoothes Ou

By Zulima Palacio Austin, Texas 20 January 2006 watch Suspension report Electric suspensions offers more stabilility One day, exhausting car rides over bumpy terrain, with all the dangers and damaging

发表于:2019-01-13 / 阅读(117) / 评论(0)

2006年VOA标准英语（一月）

英语听力—环球英语 1185 First Aid: Broken Bones

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Liz Waid. 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 Imagine this situation. You are

发表于:2019-02-14 / 阅读(44) / 评论(0)

环球英语 Spotlight

【英文短篇小说】I Hope I Shall Arrive Soon（2）

One by one the cryonic systems shut down. One by one the people returned to life, among them Victor Kemmings. What amazed him was the lack of a sense of the passage of time. He had entered the chamber, lain down, had felt the membrane cover him and t

发表于:2019-02-16 / 阅读(48) / 评论(0)

英文短篇小说

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butyl phenyl carbinol