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一些窃贼,他们没有被吓倒的迹象,只是试图打破窗户,而不是打开它。这些传感器将警报如果太多的压力或振动的玻璃。
Some Burglars who aren't deterred by the sign, will simply try to break a window, instead of opening it. These sensors will set off the alarm if too much pressure or vibration is put on the glass.
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