三分之一：表示一个整体中的一个等分之一。
...题得分率低，主要是因为涉及到用百分率进行简单换算，70题得分尤其低，此题言及“北爱尔兰有150万人，其中三分之一（one-third）在首都贝尔法斯特。
About one-third of all people cohabit at some time in their lives.
大约有三分之一的人曾与人同居。
At least one-third of all women over ninety have sustained a hip fracture.
90岁以上的妇女中至少有1/3遭受过髋骨骨折。
The top one-third of all high school graduates are entitled to an education at California State University.
全部高中毕业生当中排名前三分之一的有资格到加利福尼亚州立大学学习。
A study found that those snacks add up to almost one-third of all the daily calories eaten by children.
VOA : special.2010.03.17
In fact, the assets that the Norwegian Government owns is about two-thirds oil and one-third government pension fund assets.
实际上，挪威政府所持有的资产中,大概有三分之二的石油,和三分之一的政府养老基金。
金融市场课程节选 : 耶鲁公开课
There's never been a successful third-party political culture take hold in this country without one really big issue to drive it.
美国就从没有过,第三政党真正成功执政的时候,因为缺乏一个真正重大的议题来支持它
美国内战与重建课程节选 : 耶鲁公开课
New irrigation methods are expected to double wheat production while using one-third of the water required for full irrigation.
VOA : special.2010.02.08
But in cases with a known cause the experts say salmonella is responsible for more than one-third of hospitalizations.
VOA : special.2011.01.11
About one-third of these homes have been empty for six or more months, it says.
Back in 1965, 25% of black children were born out of wedlock, nearly one-third fewer.
FORBES: Disarming Realities: As Gun Sales Soar, Gun Crimes Plummet
One-third of respondents believe their companies lack the skills to derive the benefits of analytics.