例句
I forgot to set the burglar alarm.
我忘记打开防盗警报器了。
Car alarms are always going off in the street.
街上总有汽车警报器在响。
a sophisticated alarm system
精密的警报系统
I forgot to set the burglar alarm.
我忘记打开防盗警报器了。
Car alarms are always going off in the street.
街上总有汽车警报器在响。
a sophisticated alarm system
精密的警报系统