纳米技术 Advanced PREMIUM
纳米技术？听起来那么高级、那么神秘，除了科学家还会有别人关心吗？可是，其实生活中处处充满了科技。小到衣食住行，大到太空旅行，科技无处不在。很多今天听起来不可思议的事情，也许明天就会变得普普通通。纳米技术也是这样正在改变我们生活！ 别忘了，看一下我们新的Task功能。
| David, Vera | |
| 2127 | |
| Advanced | |
| February 19, 2013 | |
| technology, study, science | |
| asking questions, explaining, expressing opinions |
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