n 縱列(隊(duì))，行列(line of people or things positioned one behind another) [C，Gp]：march in～成縱隊(duì)前進(jìn);The boys entered the room in a single～. 男孩子排成單行走進(jìn)屋子。〖同〗 line，queue，rank，row;
(in) single/Indian file 成一路縱隊(duì)：The soldiers were marching in Indian～. 士兵們成一路縱隊(duì)前進(jìn)。
v 排成單行或縱隊(duì)行進(jìn)(walk or march in file) [I，I+prep，I+adv]：～across the road/into the hall 排著隊(duì)穿過馬路/走入大廳;The judges～d in/out. 法官們魚貫而入/出;The passengers～d past the ticket collector. 旅客們排著隊(duì)從檢票員身邊走過。