Definition
When people, vehicles, or other objects move or are arranged in formation, they are positioned in a specific pattern, typically while moving together.
（隊形）列隊
The troops marched in close formation during the parade.
部隊在閱兵期間以密集隊形行進。
When birds fly in formation, they often rotate which bird leads the group.
鳥群以隊形飛行時，通常會輪流領頭。
During training, the soldiers jog in formation.
訓練期間，士兵們以隊形慢跑。