单词：prestressed concrete bridge
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By Gary Garriott Broadcast: September 8, 2003 This is Robert Covent with the VOA Special English Development Report. Bridges are an important part of transportation systems. They make it possible to t
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杰克，你看起来气色不怎么好，怎么了？哎，自从我做兼职以来，我的课业我就跟不上了，惆怅。 A: Hi Jackie. You don't look too well. What's going on? B: It's nothing. I'm just a little stressed out. A: Why? What's
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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
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今天我们要学的词是concrete。 Concrete具体的，实质性的。美中战略与经济对话星期二结束。美联社报道说，The United States and China ended two days of high-level talks with few concrete results, 美中结束了为期两
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A: Hi Jackie. You don't look too well. What's going on? B: It's nothing. I'm just a little stressed out. A: Why? What's stressing you out? B: School. Since I was working part time, I had a difficult time keeping up with class. Now that we have exams
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