背着吉他用英文怎么说呢

"背着吉他"这个短语在英语中可以翻译成"carrying a guitar on one's back"或者"having a guitar strapped to one's back"。这个短语描述的是一个人把吉他背在身上，通常是指走路或者骑车时使用的。

这个短语可能源于音乐行业的常用语，因为在音乐演出或者行程中，许多音乐家会带着他们的吉他前往不同的地方。当然，这个短语也可以用于描述那些喜欢玩吉他的人的生活方式。

下面是一些例句：

I saw a guy carrying a guitar on his back as he walked down the street. 我看到一个人走在街上背着吉他。
She always has a guitar strapped to her back when she goes on a bike ride. 她骑车时总是背着吉他。
He was carrying a guitar on his back and singing as he walked through the park. 他走在公园里背着吉他唱歌。