single file

n. 一列纵队, 单行
adv. 一列纵队地, 单行地

例句与用法：

Let's march single file.

让我们以一字纵队前进。

ph.

单行; 一路纵队

single file

single file1.■单行，一路纵队，成单行，成一路纵队

1. [in sing.]a line of people or things arranged one behind another
   单行，一路纵队
   we trooped along in single file.
   我们排成一路纵队行进。
   [as modifier]a single-file column.
   单栏。
   

1. one behind another
   成单行地
   we walked single file.
   我们走成一路纵队。
   

single file

名词 single file:

a line of persons or things ranged one behind the other

同义词：file, Indian file

single file