Sometimes we use rising intonation to turn a basic statement into a question because we need confirmation.

有时候我们用升调来将一个基本的陈述句变成问句，因为我们需要确认。

The material dealing with the interrelationship and cooperation of the various species in their combined maintenance of your physical universe, will take many sessions.However, I will go into the methods involved.You already have a basic statement concerning the mechanisms involved.

这些涉及各种物种在共同维护你们物质宇宙中的相互关系和合作的资料，将会花上许多节课。然而，我将进入所涉及的方法。关于其中的机制，你们已经有了一个基本的说法。