Hetol
肉桂酸钠
🗣️ 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。
If there were no clouds, we should not enjoy the sun.
吃得苦中苦，方知甜中甜。
When is it going to be on the market?
什么时候上市啊