Undersaturation
欠饱和, 未饱和
🗣️ 情景例句
In fact, I love what I do ...
事实上 我热爱我的工作……
The student has made tremendous progress.
这个学生进步非常快。
Yesterday, a pigeon carried the first message from Pinhurst to Silbury.
昨天，一只鸽子把第一封信从平赫特带到锡尔伯里。