• Officials say the rate has tripled in teenagers and doubled in younger children since nineteen eighty.

    VOA: special.2010.06.07

  • John, let me give you one more, one other statistic During the last 7 years, the Bush presidency household debt has almost tripled.

    约翰,我再给你一项数据,布什上台后的这7年里,家庭债务翻了三番。

    斯坦福公开课 - 经济学课程节选

  • they're having their rents, commercial rents tripled, not even doubled.

    他们要付租金,商品房租金翻了三倍,而不只是两倍。

    纽约的负面变化 - SpeakingMax英语口语达人

  • But his big breakthrough came later, breeding high-yielding wheat varieties that more than tripled the harvest.

    VOA: standard.2009.09.16

  • Data shows the rate of childhood obesity has tripled over the last 30 years.

    VOA: standard.2010.03.09

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