梯次队形 tīcìduìxíng echelon formation Definitions Defs Origin Strokes Stroke Words Sentences Sents 梯次队形 梯次隊形 tīcìduìxíng echelon formation a military formation where units are arranged diagonally, resembling steps
梯次队形 梯次隊形 tīcìduìxíng echelon formation a military formation where units are arranged diagonally, resembling steps
