全国各地出差英语可以说作 "business trips around the country"。这个短语的来源是来自英语中关于出差的表达方式。"Business trip" 是指公司雇员去外地出差的行程，而 "around the country" 则指在全国各地。
例句：
I'm going on a business trip around the country next week. 我下周要去全国各地出差。
My job involves a lot of business trips around the country. 我的工作涉及很多全国各地的出差。
She's been on a business trip around the country for the past month. 她过去一个月一直在全国各地出差。