house e drain 房屋连接管
Once men began to drain it; suddenly one of them raised a cry that he saw his house in flames.
人们曾一度要抽干湖水,突然有个人大叫起来:他看见自己的房子着火了。
Because of this building drain the system the adoption for guest house, past indoors one of excrement drain system.
因本建筑为宾馆,故室内排水系统采用单一的粪便排水系统。
Build a model of a house water and drain system.
造一个房屋给排水系统的模型。
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