Enemy Situation Correlation Element的用法和樣例：
例句
- Beacon towers are situated at suitable intervals to give the alarm if an enemy approached.
遇有敵情，士兵會在長城北側沿線的烽火台上點燃煙火，將情報傳遞到附近的城市直至皇帝的都城。 - But in the War of Resistance Against Japan, with a different enemy and in different circumstances, there was a shift back to guerrilla warfare.
但在抗日戰爭期間，根據敵情的變化，這種帶游擊性的運動戰又基本上轉變為游擊戰爭。
