谁帮我把这句翻译成英语{我自娱自乐弹吉他的最后一刻，其实我想说：我爱你。}

这是肯定的啊，中文机译成英文时，走形一半，英文再译成中文时，再走形一半，两步下来就只有四分之一的意思剩下了。

What I really want to say is I love you in the very last moment of my self-amusing playing on guitar.

In the last moment I playing guitar for fun ,actually I wanna say:I love you!

The last moment i enjoy myself on playing guitar,actually i want to say: i love you.

I See Me guitar the last minute, in fact, I would like to say: I love you

以上是正确翻译.
英语与中文在旋律上有一定区别.不过走音并不厉害
主要看转音 方面