grand tour

grand-tour的词性：
n.（名词）

1. A comprehensive tour or survey.
包罗万象的游历或调查

2. An extended tour of continental Europe formerly considered a finishing course in the education of young men of the English upper class.
巡回大旅行：泛游欧洲大陆的旅行（从前被认为是英国上流阶层年轻人教育的结业课程）