If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
The first is that the stock market often goes far wrong, and sometimes an alert and courageous investor can take advantage of its patent errors.
第一，股票市场经常错得离谱，精明而勇敢的投资者偶尔可以从明显的错误中获利。
The first is that the stock market often goes far wrong, and sometimes an alert and courageous investor can take advantage of its patent errors.
第一，股票市场经常错得离谱，精明而勇敢的投资者偶尔可以从明显的错误中获利。
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