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 echelon formation (military) Sources Definitions CC-CEDICT
梯次队形 (梯次隊形) tīcìduìxíng echelon formation echelon formation (military) Sources Definitions CC-CEDICT