The security system detected an intruder in the building.
安全系统检测到建筑物内有入侵者。
She was startled by the sudden appearance of an intruder.
她被一个入侵者的突然出现吓了一跳。
The dog barked loudly at the unexpected intruder.
狗对着意外的入侵者大声吠叫。
They installed cameras to catch any potential intruder.
他们安装了摄像头以捕捉任何潜在的入侵者。
The police arrested the intruder before he could escape.
警察在入侵者逃跑前逮捕了他。
An intruder broke into the house through the window.
一个入侵者通过窗户闯入了房子。
The alarm went off when the intruder entered the premises.
当入侵者进入场地时，警报响了。
She felt a chill when she realized there was an intruder.
当她意识到有入侵者时，她感到一阵寒意。
The intruder left footprints on the muddy ground.
入侵者在泥泞的地面上留下了脚印。
The family was unharmed despite the presence of an intruder.
尽管有入侵者，一家人都安然无恙。
intruder alert
入侵警报
intruder detection
入侵检测
intruder alarm
入侵报警
intruder prevention
入侵预防
intruder identification
入侵者识别
intruder response
入侵响应
intruder system
入侵系统
复数: intruders;
