CHAD O'CARROLL: These window bars are made of concrete, they're immovable and they are basically either fully opaque or they are kind of slat - - slats that just allow you to look in one way.
这些窗户栏由混凝土制成,它们是无法移动的,并且完全不透明,再不然就是那种板条窗,那种你只能以某种特定角度才能看到里面的窗户。