Everyone, please keep to a single f

Everyone, please keep to a single file line as you walk to the school clinic.

Results (Chinese) 1:

每个人，请保留到一个文件中的行，当你走在学校医务室。

Results (Chinese) 2:

各位，当你步行到学校诊所时，请保持一个文件行。

Results (Chinese) 3:

各位，当你们走到学校诊所的时候，请保持一条单行线。