China's universities need tough guidelines to clarify and check decision-makers' powers, says an editorial in Nature.

《自然》杂志的一篇社论指出，中国的大学需要严格的规范来澄清和检查决策者的权力。

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Young players need tough lessons to learn about the harsh realities of football at the very highest standard, and Vidic says this match will stand many of them in good stead.

年轻球员们需要在最高水平上学习足球的艰难之处，维迪奇说本场比赛有很多积极因素。

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Unlike the many winter greens that have tough leaves and thus require a lengthy cooking time, those of escarole need little or no cooking.

与许多冬天的绿色植物不同，它们的叶子很硬，因此需要很长时间来烹饪，莴苣菜几乎不需要烹饪。

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The president faced a tough audience. There is consensus in the medical community about the need for reform to improve the affordability and accessibility of quality care.

VOA: standard.2009.06.15

There is absolutely no doubt that we need tough and stringent gun control.

CNN: Now is the time to talk guns, mental illness

"But in order to deliver that type of system we need a tough-minded and rigorous assessment of how our skills policies need to change, and in reality that is not, I'm afraid, what we've had today, " he said.

BBC: NEWS | UK | Education | Promise of a 'skills revolution'

"There's a need for tough decisions but also innovative thinking, " said Mr Killen.

BBC: Shepton Mallet