单词：fixed pin type piston
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用Mp3背六级单词
在今天我们要讲的两个习惯用语里，一个关键的字就是：pin。Pin这个字单独用的时候可以解释为：别针。但是，pin这个字也有不少和其他字合在一起用的时
美国习惯用语
Libyan rebels and government forces have staged several offensives in the battle for control of the country. To get a clearer picture of the situation on the ground, VOA's Susan Yackee spoke to our correspondent Phil Ittner who is currently in the op
VOA标准英语2011年(三月)
A:Welcome to Als Garage. What seems to be the problem? B:No problem at all! I am taking a long road trip and I want to make sure my car is in good mechanical condition. A:Very wise decision. When was the last time you had a tune up? B:Not that long a
纯正地道美语
The plaster model is used to make the bridge in my dental laboratory. 石膏模型是用来在我的牙料制造室里做齿桥用的， It will take one week for the laboratory to make the bridge. 在牙科制造室作假牙要一个星期。 What d
口腔临床英语对话
北京奥运28大项 参与，竞争，分享，进步 Boxing 拳击 FOULS 犯规 英文原文 Cautions, Warnings, Disqualifications: The competitor who does not obey the instructions of the Referee, acts against the Rules of boxing, boxes in any unsportsmanlike manner, or
奥运28大项比赛
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile
VOA标准英语2016年(三月)
Coffee, computers and piston engines - could we imagine a world without them? These are intricate parts of every day life for most of us and the knowledge that led to them was either invented by or passed down through the ancient Muslim world. That's
VOA标准英语2010年(二月)
A group of senior students from Zhejiang University have successfully developed an air hand-washing device. 浙江大学的一队大四学生成功研制出了空气洗手装置。 The device utilizes an infrared ray induction system, which detects t
英语新闻
When Dusty learns that his engine is damaged and he may never race again, he shifts gears and is launched into a world of aerial firefighting. I thought it was a great start. I knew that it would be a more of a harrowing adventure. The first film was
CCTV9英语新闻2014年07月
Track One From a very young age I had a bit of a fascination with flying 我自儿时便有些迷上了飞行 Bit of a fascination with speed 着迷那样的高速（驾驶） As I went through school and into my A-Levels I wanted to pursue a flying
英语PK台