问题描述：
1.The alarm they got installed in this house is triggered 1.2 seconds after broken contact in any door or window.
如果我们打破任何一扇门或窗,那么1.2秒内房内安装的警报器就会启动…
（为什么要用got installed,用are installed不行吗?）
2.Don't turn around,unless you'd like to experience a great deal of pain over an even greater length of time.
别转身!否则要么让你体验一下短痛的刺激,要么让你享受一下长痛的滋味.
（这里我想请教一个问题,over an even greaterl length of time,这个句子我一点都看不懂,）
如果我们打破任何一扇门或窗,那么1.2秒内房内安装的警报器就会启动…
（为什么要用got installed,用are installed不行吗?）
2.Don't turn around,unless you'd like to experience a great deal of pain over an even greater length of time.
别转身!否则要么让你体验一下短痛的刺激,要么让你享受一下长痛的滋味.
（这里我想请教一个问题,over an even greaterl length of time,这个句子我一点都看不懂,）
问题解答：
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