资料来源 : pyDict

成一直线,成一排

资料来源 : WordNet®

in line
     adj 1: awaiting something; especially something due; "people were
            in line at the checkout counter"; "she was in line for
            promotion"
     2: being next in a line of succession; "he was in line for the
        presidency"
     adv : one behind another in a line or queue; "they waited in line
           for the tickets"