Subadditivity
子[次]可加性
🗣️ 情景例句
We'll move after the school term.
我们等这学期结束后再搬。
In university, students are trained to become teachers and engineers.
大学的学生被训练成为教师和工程师。
They then knew that they had discovered the cause of the fire.
这时调查人员知道他们找到了发生火灾的原因了。