Predual
预对偶
🗣️ 情景例句
Your pressure is 120 over 75, and that's fine.
你的收缩压是120， 舒张压 75。
Which one is more expensive?
哪一个是比较贵的？
but it does mean that noise is less dangerous than, say,
但它确实说明，噪音的危险性--比如说--