听力每日练习 listen 1908 The museum

 
2-- Yes. Look at these historical relics here, amazing!
 
1-- Why are they all in glass boxes?
 
2-- For protection. Some relics will turn to dust if exposed to air.
 
1-- So there isn't air in the glass boxes?
 
2-- No, there isn't. There is a vacuum in every box.
 
1-- I wonder how old these things are. Thousands of years?
 
2-- Yeah, they all come from a very ancient time.
 
1-- Hey, look at the tripod. I've seen it on TV.
 
2-- It was made 4,000 years ago. It's priceless!
 
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注解：
 
1.historical relics历史文物 
2.protection保护      
3.vacuum真空 

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译文：

1--梅，这是古代中国馆吗？
2--是啊。看这些文物，真令人惊叹！
1--为什么它们都被装在玻璃盒里呢？
2--为了保护它们啊。—些文物暴露在空气中就会变成粉末。
1--那玻璃盒中就没有空气了？
2--没有。它们都是真空的。
1--真不知这些东西有多古老，几千年？
2--是啊，它们都是来自古代。
1--嘿，看这个鼎。我在电视上看到过。
2--4000年前的青铜鼎。这可是无价之宝！