In other words
也就是说,
If I understand you correctly, you mean
假如我没理解错的话,你的意思是
What you said is/What this means is that
你说的是/这就是说
I think I understand what you mean. Let me put it another way.
我想我了解你的意思了。我换个方法说一遍。
Would you like to elaborate1 on this point?
关于这一点你可以详细讲讲吗?
This brings us to our major question
这引出了大家要研究的主要问题
Could you restate you point? Im not sure I understand.
你能再说一遍你的怎么看吗?我不太确定是否了解你的想法。