学龄的英文：
school age

school是什么意思：
n. 学校，学院，学派，上学阶段；上课时间；学校全体师生；群
v. 训练；教育

This is the argument of the school.
这就是流行学派的论据。

the cock of the school
学生中的头目；最横行霸道的学生

These are primary school pupils and those are secondary school students.
有小学生也有中学生。

The primary school is compulsory, and the pupils go to their local schools.
初级学校教育是义务制教育，学生都在当地的学校就读。

Reputation of undergrad school is important for grad school admission.
本科学校的声望对于研究生院的录取来说很重要。

age是什么意思：
n. 年龄；时代，时期；年龄段
v. 长大，变老

This is a bulletin on aging.
这是关于老龄问题的期刊。

They are close in age.
他们年龄相仿。

It will be a production that will be handed on from age to age.
这将是传世之作。

Attach importance to the problem of population aging (an aging population )
重视老龄化问题

One has reached the age of no doubting—forty years of age
年登不惑