Thanks for sharing.

That makes sense now. I was mistaken when I read: 天花板上的音响喇叭，是去年秋天，全家团聚时，我爸爸提议，我老哈和弟弟挖洞装上的。 挖洞.... I thought you guys have to dig a hole on the ceiling, that would be so difficult, almost impossible for me to image. But now I know there are holes already made by the builder.