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。
for even though it was far too big for her needs, she persisted in living there long after her husband's death.
房子实在太大了,但在丈夫去世多年后,她仍然执意长年住在那儿。