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。
In all the less controversial fields, like the study of cacti or termites or the nature of nebulae,
在一切争议较小的领域里,如对仙人掌、白蚁或星云性质的研究,