Decelerations
(deceleration 的复数) n. 减速\\n[医] 减速[度]
🗣️ 情景例句
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。
Janet winked at her boy friend.
珍妮向男朋友眨眨眼。
Thank you. Goodbye!
谢谢您。再见！