I'm a novice at fishing. How to tie the main line and the auxiliary line? I have now cut the main line of the 6.3-meter fishing rod and tied it with an 8-shaped ring, eight.

Your main line is a straight line, so it's no problem to tie it up. There is a lead seat above the figure-eight ring, and a secondary line is tied below the figure-eight ring. The number of auxiliary lines should be less than that of main lines (e.g. main line 1.5 auxiliary lines 1.0), the length of auxiliary lines is generally 20-30CM, and the hook distance should be controlled at one and a half hooks or two hooks. As for the statement that the bank is too long to see the fish take the bait, this statement is wrong. It has something to do with drift adjustment and nothing to do with the length of the secondary line. You can watch the video on the internet and see how to adjust the drift.