练习吉他用英文怎么说短语

练习吉他用英语的短语是 "practice guitar"。这个短语来源于英语中 "practice" 这个动词，意思是 "练习"，"guitar" 是吉他的意思。

下面是一些例句：

"I practice guitar every day to improve my skills." (我每天练习吉他来提高我的技能。)
"He practices guitar for at least an hour every day." (他每天至少练习吉他一个小时。)
"She enjoys practicing guitar and playing music with her friends." (她喜欢练习吉他和和朋友们一起演奏音乐。)