Dedendum
[机]齿根, 齿根高
🗣️ 情景例句
People who take less exercise seem more vulnerable to illness.
缺少运动的人对疾病的抵抗力就差。
In universities,students train to become teachers and engineers.
在大学里，学生们被训练成为教师和工程师。
What is it?
什么呢？