• But professors at big schools say there is not enough time to write evaluations for each student in large classes.

    VOA: special.2009.03.05

  • These kind of natural and spontaneous arrangements are not global, they're not big enough and important enough.

    这种自发性的商议,并不是全球性的,它们的规模不够大,也不那么重要。

    耶鲁公开课 - 金融市场课程节选

  • The Obama administration has been especially attuned to criticism that it is not doing enough for small business, and focusing too much on helping big corporations and financial firms.

    VOA: standard.2009.03.16

  • Today,the number is still 40 percent. Part of the problem is that a number of big importers, such as China and Japan, are not doing enough to stop the import and sale of illegal timber.

    VOA: standard.2010.07.28

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