警备的英文：
guard
garrison
n. 卫兵；护卫队；守卫；警戒；防护装置；列车长
v. 看守；监视；控制；防范
guarding position
防守位置
a guarded answer
谨慎的回答
...the Irish Guards
...爱尔兰近卫团
a security guard
安全警卫
The sentry is on guard.
那哨兵在站岗。
n. 守备部队；要塞，驻防区
v. 驻守
For months the beleaguered garrison refused to surrender
一连数月，被围困的驻军都拒绝投降。
This unit is under the command of the municipal garrison.
这支部队隶属市警备区。
No other soldiers were garrisoned there.
那里没有其他驻防士兵。
The troops were amplified to protect the garrison.
兵力增强了，以保卫驻地。
British troops still garrisoned the country.
英军依然驻守在该国。