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三分之一的婚姻都以离婚而告终。

One in every three marriages ends in divorce.

《牛津词典》

约有三分之一的孩子曾严重体重过轻。

Nearly a third of the children were severely underweight.

《柯林斯英汉双解大词典》

That's the average of all of your weekly quizzes in the recitation. Each of those three monthly tests gives also a sixth.

就是你们每周背诵课的测试的平均分,而三次的月考,的成绩也占六分之一。

麻省理工公开课 - 固态化学导论课程节选

So they--a typical advanced country takes a third of the profits, the government takes a third of the profits.

典型发达国家一般征收走三分之一的利润,政府拿走公司利润的三分之一

耶鲁公开课 - 金融市场课程节选

About one-third of Southern white families at one time or another had at least a toehold in slave ownership.

大约三分之一的南方白人家庭,在某一段时期至少都拥有过奴隶

耶鲁公开课 - 美国内战与重建课程节选