The teaching of history should not be limited to dates and figures.

教授历史不应该局限于讲年代和人物。

I believe teaching should not be limited to the classroom.

我认为教学不应该局限在教室内。

The expenses should be limited to what you can really afford.

费用不应超出你们偿还能力的限度。

All speeches will be limited to five minutes.

所有演讲限制在5分钟之内。

Such safety systems need not be limited to roads.

这样的安全系统也不仅仅局限于道路使用。