• Charles Wortmann at the University of Nebraska-Lincoln says a one-time tillage may be used to correct a problem like aggressive weeds.

    VOA: special.2010.09.28

  • He was also known as a very aggressive hitter, swinging hard and fast at almost any ball.

    VOA: special.2010.04.11

  • The scientists say that studies based on the new genome may help explain, in the short-term, why the organism has been so aggressive.

    VOA: special.2009.11.03

  • Doctor Giuliano says rates of survival five years later showed that the less invasive operation was just as successful as the more aggressive action.

    VOA: special.2011.03.23

  • The scientists say that in the short term, studies based on the new genome may help explain why the pathogen has been so aggressive.

    VOA: special.2009.10.20

  • So could letting another country use a state's territory for aggressive acts against a third state.

    VOA: special.2010.06.21

  • But the secretary called for aggressive action, saying there was more risk in taking small steps.

    VOA: special.2009.02.13

  • She describes the chimps' intelligence, their hunting activities and their sometimes extremely aggressive behavior.

    VOA: special.2009.11.18

  • At the same time, civil rights activists could accuse them of being too aggressive.

    VOA: special.2010.07.03

  • John D.Rockefeller's new company used the same aggressive business methods as Andrew Carnegie.

    VOA: special.2010.02.25

  • Last year, we launched an aggressive new strategy for polio eradication.

    VOA: special.2011.01.19

  • He said he knew that McClellan was not an aggressive general.

    VOA: special.2009.09.24

  • But they can be very aggressive and protective of their territory.

    VOA: special.2009.08.19

  • Some people,for example, are aggressive and always in a hurry.

    VOA: special.2009.03.24

  • They also point to reports of highly aggressive marketing.

    VOA: special.2010.07.29

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