It is remarkable that large, mixed-ability classes could be kept together for maths throughout all their compulsory schooling from 6 to 15.

值得一提的是，在6岁到15岁的整个义务教育阶段，庞大的能力不同的班级都可以一起学习数学。

youdao

The reality is that, voluntary or compulsory, it would be almost impossible to impose and to whom would it apply - tourists?

现实是，不论自发还是强制，宵禁几乎无法付诸实施，而且，实施的对象又是谁？游客？

youdao

It seems clear that such a scheme is an initiative push toward what would eventually be a compulsory of Internet "driver's license" mentality.

该计划看来明显是一个最初的推断，最终将形成一种英特网强制性“驾驶执照”的心态。

youdao

She believes passionately that relationships and sex education should be taught at an early age, and that it should be compulsory.

BBC: Are we having more sex?

It must be remembered that secondary education after the compulsory leaving age is not just about sixth forms and A levels.

BBC: Education: School League Tables

The problem with setting a higher compulsory level of saving is that it would be unpopular - many would see it as a tax - and inappropriate for certain categories of people.

BBC: A pensioner at a post office