He says that brain change is strongest when a) you are interested in and like what you are learning, b) you are in control of what you learn and c) you get challenging tasks that make you think hard.

他说，当你 a）对你正在学习的东西感兴趣并且喜欢它，b）你能控制你所学的东西，c）你接受有挑战性、让你努力思考的任务时，大脑的变化是最剧烈的。

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B: Because the job wasn't challenging enough.

因为那份工作挑战性不够。

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B: it sounds like a challenging position.

看来这一职位极富挑战性。

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There is some corking business on the Committee Corridor, where the Education Committee hears from some of the star-educators at Jamie's Dream School - including David Starkey Jazzie B and Robert Winston, in a one-off session on the issues around teaching "challenging" children.

BBC: Viewing guide: The week ahead in Parliament