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 inst
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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 inst
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,）
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 inst
首先get sth done 表示使某物怎么怎么样.表示主动的动作,还原即为they got the alarm installed.“他们在房里安装警报器”在此处是一个定语从句,限定the alarm.换成are alarm,明显错误：The alarm they are installed,讲不通啊.因为they是指安装警报器的人,换成are不就乱套了吗.句意不同啊.
2,具体分析如下：
over在这里是介词,取”在……期间之意”如over a long period of years.over后结一段时间,表在这段时间期间
还有over an even greaterl length of time只能算作是个短语,而非句子.
even此处是“更……”修饰比较级,是个副词.
a length of ……一段……
over an even greaterl length of time直译就是“经过更长的一段时间”
1.不行，are installed是被动语态，如果用了，为“如果我们被打破任何一扇门或窗
2我只学到初三