This is a class of mixed abilities.

这个班级里的学生水平不一。

The Finnish education is far less cutthroat classes are all mixed ability and there are no league tables.

芬兰的教育远没有那么残酷 班级都是混合能力 也没有排名表。

The contradiction is that the mixed- ability principle of most secondary schools was never extended to higher education, which continues to be highly stratified.

矛盾之处在于大多数中学的混合能力原则从未延伸到高等教育，而高等教育仍然高度分层。