It's better to study fairly briefly but often.

最好非常短暂而经常地学习。

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Isadora Duncan did study ballet briefly as a child, but she quickly developed her own unique style, which she called free dance.

伊莎多拉·邓肯小时候曾短时间学习过芭蕾舞，但她很快就发展出了自己独特的风格，她称之为自由舞蹈。

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Finally, I briefly covered the topic of user-defined data types, which is an advanced topic that needs detailed study.

最后，我简述了用户定义数据类型的主题，它是一个需要我们仔细学习的高级主题。

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