该研究旨在为这种确诊后生存期不足五年的疾病提供更佳的治疗和预后。
This new research is aimed at providing a better treatment and prognosis for a cancer that is historically not survivable past five years from diagnosis.
使用不足五年者不具有预防作用，并且有些镇痛药缺乏似乎缺乏预防作用。
Use for less than five years was not as protective, and some of the pain relievers did not appear to be protective at all.
本月刚刚出炉的考夫曼基金会研究陈诉显示，成立不足五年的新公司在2007年创造了快要三分之二的参加工作机会。
According to new Kauffman Foundation research this month, companies less than five years old created nearly two-thirds of net new jobs in 2007.
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