경보

To move forward in a determined way, especially in battle; to advance.

空军；进行空中作战的国家武装力量分支。

Protective covering worn to defend the body in battle; armor.

The land-based branch of a nation's armed forces; army.

对敌人进行攻击或发动攻势的行为。可以是身体上的、言语上的或战略上的。

To launch an assault or offensive against an enemy; to attack.

To keep away from or prevent; to avoid, dodge.

A place where a battle is fought; battlefield.

A line separating two countries; border.

Watchfulness, vigilance, or a guard post.