Ster
n. 灭菌, 绝育；消毒器, 杀菌器
🗣️ 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。
A hot bath makes all the difference in the morning.
上午洗个热水澡能让人精神振奋。
Excuse me. What is your full name, please?
请问，您的全名是什么？