Unit Air Defense的用法和樣例：
例句
- The squadron was protected by a highly mobile anti-tank and air defense.
這個中隊由高度機動的反坦克和防空部隊保衛。 - You'll also gain control of some of Webb's units, including another repair unit and a couple more artillery units, as well as an anti-air unit.
你還增益控制一些韋伯的單位，包括修復另一組一對夫婦更炮兵部隊，以及防空部隊。
