Predentine
前牙质
🗣️ 情景例句
I've been studying all day, and I'm sick and tired of it.
我学了一天，现在感到厌倦。
I have nothing to do with it.
那与我无关。
Thank you, doctor. Come along, Tom.
医生，谢谢你。我们走吧，汤姆。