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。
So, ask businesses on both sides of the Atlantic, why have two lots of tests where one would do?
因此,大西洋两岸的企业都在问,当一套测试可以解决问题时,为什么需要两套呢?