How would you like to have beefsteak, well-done or rare?

你喜欢的牛排是熟一些还是生的？

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The images give us a chance to see birds, whether common or rare, as never before.

无论是常见的鸟类还是稀有的，这些照片让我们看到了以前从没见过的一面。

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For an enthusiastic birder, nothing is more exciting than spotting a new or rare bird, or learning to distinguish individual birds through their personalities.

对于一个狂热的观鸟爱好者，没有什么能比看到一只没见过的或者罕见的鸟、或者是学会通过特征区分各个鸟种更令人激动的了。

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It is also not rare,she says, for the perpetrator to be an uncle, cousin or other family member.

VOA: standard.2010.06.29

They can do it on rare occasions, or they can do it whenever they feel like it, or they can do it regularly; it's often done quarterly.

他们可以偶尔为之,也可以在任何时间发放,或者定期发放,一般是一季一发

耶鲁公开课 - 金融市场课程节选

There's a kind of aspect of value for many of us where we feel that something's especially valuable if it won't endure, if it's fragile, or if it's rare.

对我们许多人来说，有一种价值的方面在于,如果某事物不是持续的，如果是易碎的,或者是稀有的，我们就觉得它特别有价值。

耶鲁公开课 - 死亡课程节选

"We are trying to take an unusual or rare event and make it more common, " says Haynes.

CNN: Possible step toward AIDS vaccine development

With a growing number of companies issuing baseball cards, there's nothing particularly unique or rare about them.

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And when new or rare diseases are found, doctors worldwide turn to the CDC to figure out which microorganisms they are battling.

CNN: CDC leads battle in disease fight