You must develop the muscles of your speech organs to produce unfamiliar sounds.
所以你必须训练和发展你的发音器官(声带、舌、口、鼻腔等)的肌肉,以便发出陌生的(另外一种语言)声音。
To make matters worse, the room is rather small, so I have temporarily put my books on the floor.
更糟糕的是房间还非常小,所以我暂时把书放在了地板上。