Dentalation
齿状结构
🗣️ 情景例句
Yup. Forty-three years.
是的， 四十三年了。
I told him to stay till he calls.
我告诉他留下来等他打电话来。
I'm sorry, I can't. Is it under the teacher's desk?
对不起，我没见过，是不是在老师的讲桌底下？