Moreover, due to urban expansion, burglary increase and the frequent occurrence of fire in using gas and large numbers of home appliances, home security alarm system research has been increasingly active. 同时由于城市人口膨胀,入室盗窃增加,煤气和大量家用电器设备的使用又使得火灾屡屡发生,为此对家居安防报警系统的研究也越来越活跃。
During the first half of her Monday shift Morrow had answered several calls including one for a burglary in progress and another for a house fire. 周一莫罗第一天上班。前4个小时里,她接到了数起报警电话,其中包括一起入室抢劫案及一起住房着火事件。