她背疼用英文怎么说

"She has a backache" 或 "She is experiencing back pain" 是表示她背疼的英文表达方式。

其中, "backache" 是指背部疼痛, "back" 指背部， "ache" 是指疼痛的意思。

例句：

"She has a backache and can't stand for long periods of time."
"He's been having a bad backache for a few days now."
"She's been experiencing back pain for a few weeks."

中文翻译：

她背疼得不能站立很长时间。
他最近几天背疼得很厉害。
她近几周一直在经历背部疼痛。