It too sounds a fine idea, but even top private schools, with lots of money and good teachers, find it tricky to timetable lots of variation within one age-group's lessons.

这听起来也是个好主意，可是即使是最顶尖的私立学校，有大笔的资金和优秀的老师，也认为在某个年龄段的课程中以一个课程表考虑到大量变化因素实在是勉为其难。

youdao

Good morning, boys and girls. Good morning, dear teachers!

亲爱的老师们同学们，大家上午好！

youdao

Good morning, teachers and classmates.

老师们，同学们，早上好！

youdao

You get teachers that are really good and very passionate.

有很好很有热情的老师。

热情的教授 - SpeakingMax英语口语达人

This means they must have something to read - good libraries - and good teachers to help them.

UNESCO: SERVICE DE PRESSE

It too sounds a fine idea, but even top private schools, with lots of money and good teachers, find it tricky to timetable lots of variation within one age-group's lessons.

ECONOMIST: Exams

Let's remove barriers to qualified instructors, attract and reward good teachers, and help bad teachers find another line of work.

CNN: McCain: Change is coming