In general English, statements and expressions of importance are used as follows: first and most think that first, first, it is both order and importance; If you put it at the end, it is the last, and it also emphasizes its importance. English logic is generally the most important in the front and the second in the back, so if you want to emphasize the last point, it is also important to use last. I suggest you put the most important thing first, which is more in line with English logic.

In addition, if you must use the second and most important one, just say, the second and most important one is. ......