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仅在避免重复设施的基础上，在双州地区新建大型医院就是对资源的浪费。

Building large new hospitals in the bistate area would constitute a wasteful use of resources, on the basis of avoidance of duplicated facilities alone.

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我有一双小眼睛，大鼻子和一对大耳朵。

I have a pair of small eyes, a big nose and a pair of big ears.

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Why don't we give Philip both the matching pair and give you each a pair of socks since he didn't get to wear this one, they are brand new, in fact, and a big round of applause for what I'm sure is a little difficult.

我们为什么不给飞利浦一双配对的袜子,给你们每人一双袜子,他还没穿这双袜子，所以这双还算是全新的，再次以热烈的掌声对他们表示感谢,这样的模仿还是有一些难度的。

哈佛公开课 - 计算机科学课程节选

So we're going to limit in our discussion in 511-1 for molecular orbital theory to diatomic molecules.

我们在这个课堂上对分子轨道1,理论的讨论仅限于双原子分子。

麻省理工公开课 - 化学原理课程节选

The end result is you can design now very specific double stranded RNA sequences, that when delivered into cells again will activate this process of natural degradation of an existing messenger RNA.

最终的结果是,你现在能够设计针对性很强的,双链RNA序列,当这段序列被转入细胞后会激活,对已有信使RNA进行降解的过程

耶鲁公开课 - 生物医学工程探索课程节选