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 there was a danger that if she traveled too quickly, this rudder would be torn away as well.
因为船不能开得太快,否则就有危险,应急舵也会被刮走。