breadcrumb navigation
noun [ U ] internet & telecoms specialized uk/ˌbred.krʌm næv.ɪˈɡeɪ.ʃən/ us/ˌbred.krʌm næv.əˈɡeɪ.ʃən/
面包屑式导航（指示网页所处位置并方便返回）
the way in which someone finds their way around a website using breadcrumbs (= links to previous pages visited)
Breadcrumb navigation will greatly increase the usability of a website. 面包屑式导航将极大提高网站的可用性。