single file
noun [ S ] uk/ˌsɪŋ.ɡəl ˈfaɪl/ us/ˌsɪŋ.ɡəl ˈfaɪl/
单行，一路纵队
a way of walking with one person behind another
The schoolchildren were told to walk in single file. 小学生们被要求排成一路纵队前进。
| 单词 | single file |
| 释义 | single file noun [ S ] uk/ˌsɪŋ.ɡəl ˈfaɪl/ us/ˌsɪŋ.ɡəl ˈfaɪl/ 单行，一路纵队 a way of walking with one person behind another The schoolchildren were told to walk in single file. 小学生们被要求排成一路纵队前进。 |
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