三分之二

He devoted himself to the study of medicine after typhoid fever decimated most of his family.

那时瘟疫流行，他的家人不到10年，因为伤寒死了三分之二。

By 00:55 UT, the umbra is in central India where it stretches diagonally across 2/3 of the country.

到UT00：55，本影处于印度中部，呈对角状态穿越三分之二的国家。

While two-thirds of mankind suffers undernourishment, our own upper classes revel amidst superfluous abundance.

三分之二的人类正苦于营养不良，而我们自己的上流社会却穷奢极欲，纸醉金迷。

More than two-thirds of Brazil's unexploited hydro-power potential is in the Amazon.

巴西三分之二以上未开发潜在风力发电能存在于亚马逊地区。

The South Korean ruling Grand National Party is driven by factionalism and acts like a minority party despite having nearly two-thirds control of the unicameral National Assembly.

韩国的在朝党大国家党虽然拥有国民大会几乎三分之二的单院席位，但是受党派之争的印象，大国家党看起来更像一个少数党。

International postal service requires membership of the Universal Postal Union, which for non-members of the UN need approval by at least two-thirds of that body's members.

要开展国际邮递服务必须要加入万国邮政联盟，而非联合国成员国则需要获得该联盟超过三分之二的赞成比例方可加入。

Unroll it and cut a piece out, roughly two by four feet.

摊开，并减少一块了，大约三分之二的4英尺。

In a study of nineteen sets of twins who had been separated from birth, investigators found that in approximately two thirds of the sets there were no more significant differences than existed among unseparated pairs of twins.

在对从一出生就分离的19对双胞胎的研究中，研究者发现，其中约三分之二的双胞胎之间的差异与一起长大的双胞胎之间的差异一样不明显。

Para.4 In a study of nineteen sets of twins who had been separated from birth, investigators found that in approximately two thirds of the sets there were no more significant differences than existed among unseparated pairs of twins.

整句话的意思为：在对从一出生就分离的19对双胞胎的研究中，研究者发现其中约三分之二的双胞胎之间的差异与一起长大的双胞胎之间的差异一样不明显。

In a study of nineteen sets of twins who had been separated from birth,investigations found that in approximately two thirds of the sets there were no more significant defferences than existed among unseparated pairs of twins.

大约三分之二的双胞胎之间的差异并不比未分开抚养的双胞胎之间的差异显著。上述句子形式上都是肯定的，但是意义上却是否定的。第一句通过free词缀实现否定意义，第二句通过no …… more than来实现否定意义。像这类句子就叫做暗否定。一般情况下，英语句子中的暗否定可以通过句子、短语和词来实现。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。