speaking tube
柯林斯词典
1. N a tube or pipe for conveying a person's voice from one room, area, or building to another 房间与房间、建筑与建筑之间的通话管
返回 speaking tube
1. N a tube or pipe for conveying a person's voice from one room, area, or building to another 房间与房间、建筑与建筑之间的通话管