他们的评述始于基于打造爱情理论和实践基础的一种观念：因为爱情是物质世界的一部分，所以爱情必有其法则。
They begin with something that provides a foundation upon which the theory and practice of love can be built: "Because it is part of the physical universe, love has to be lawful."
大语文教学模式在初中语文教学中是必要的，因为其既有坚实的实践基础，又有相应的理论原理。
The mode of whole Chinese teaching is necessary for Chinese teaching in junior middle school, there is the support of practice foundation and theory principle.
在实践的基础上研究经济新闻源是对经济新闻传播的基础所作的理性思考，具有一定的理论意义和实践价值。
Research on economic news resource based on practice is the rational study of economic news propagation basis, and is of theoretical importance and practice value to certain extents.
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