single file
noun[S]
uk/ˌsɪŋ.ɡəl ˈfaɪl/us/ˌsɪŋ.ɡəl ˈfaɪl/a way ofwalkingwith onepersonbehind another:
单行,一路纵队Theschoolchildrenwere told towalkinsinglefile.小学生们被要求排成一路纵队前进。
Things collected in lines or rings
- chain
- column
- crocodile
- file
- interrow
- line
- queue
- rank
- ring
- rope
- row
- string
- thread
- tier
- train
- two-tier