noun · a military aircraft designed primarily for air-to-air combat

两架战机在演习中模拟了空中对决。

noun · confidential military information or strategic plans

由于内部人员泄露战机，我军的行动计划被迫取消。

noun · a favorable opportunity for a battle or military operation

指挥官敏锐地察觉到了进攻的战机。