帮我解释一下这个吉他谱

D=4/2      
和弦走向  D→A→Bm→Fm→G(3)→D(5)→G3→A(5)
分解和弦  4 3 1 2      .  复旋 部分 改成 4 1 2 3
（下面是歌词 可以不用看 上面分解和弦 4312 和 复旋 部分 改成 4 1 2 3是什么意思）
I was found on the ground by the fountain about a fields of a summer stride
lying in the sun after i had tried
lying in the sun by the side
we all agreed that the council would end up three hours over time
shoe laces were tied at the traffic lights
i was running late, could apply
for anther one i guess
after parking stores are best
they said that there would be delays
on the temporary pay
for another one i guessed
after parking stores at best
they said that there would be delays on the temporary pay
She was found on the ground in a gown in a fountain
filled by the summer
I was found on the ground by the fountain about
a fields of a summer stride
lying in the sun after I had tried
lying in the sun by the side
we all agreed that the council would end up
three hours over time
shoe laces were tied at the traffic lights
I was running late, could apply
for a not her one I guess
after parking stores are best
they said that there would be delays
on the temporary pay.

4312 是你拨的弦 按照4-3-1-2 来拨