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。
But so far, the public has expressed its gratitude to the students in letters to the Press.
但到目前为止,公众已经向新闻界写信表达他们对学生们的感激之情了。