So, let’s start with .. (the objectives ..)
Now let’s move on to .. ( the next part ..)
Let’s turn our attention to .. (the question of ..)
This leads me to .. (my third point ..)
Finally .. (let’s consider ..)
การสรุปสิ่งที่ได้กล่าวไปแล้ว
That completes my .. (description of ..) / So, to summerize .. (there are five key points ..)