The unified construction of the cluster of sub-discipline must have a focus.

这个子学科群的整体构建必有一个重心。

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The discipline of curriculum theory is bound to have a cluster of sub-discipline.

课程论各子学科的构建不能平均用力，而须有重点地展开。

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Ageing, reckons Mr Stipp, is on the verge of becoming a respectable sub-discipline of medicine.

Stipp先生认为衰老正在成为医学方面一个重要的学科。

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Mr Rose, who as an historian of the book belongs to a growing sub-discipline, has written a masterly account of the way in which the British working classes (and that term must remain emphatically plural, since Mr Rose moves from the landlocked rural poor, to London's Jewish East End, to the clattering factory towns of north-western England) have taught, soothed and entertained themselves through their own intellectual resources.

ECONOMIST: Cultural history