Now I have a practical question for you all.
现在我有一个实际的问题要问大家。
Harry: Well let me ask you a practical question then.
哈里：呃，那我问你一个实际的问题。
Here there comes a practical question which has often troubled me.
在此有一些实践上的问题总是困扰着我。
And there is a practical question as to whether wildernesses can be exploited without harm.
另外还有一个实际的问题是，是否可以开发荒野却不造成危害？
This was the first experiment to formally put that question to a practical test.
这是第一次正式以实地实验的方式对这个问题进行检验。
It's a question of which option is practical for your own situation.
对于你的处境哪种选择比较现实这是个需要考虑的问题。
This is a basic theoretical question, and also an important practical question.
这既是一个基本的理论问题，同时也是一个重要的实践问题。
This article is a study about this question and supplies some practical data.
本文针对此问题作了一些相关的研究，提供了一些实证数据。
This article is a study about this question and supplies some practical data.
本文针对此问题作了一些相关的研究，提供了一些实证数据。
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