三分之一

Scientists say an experimental vaccine reduced the risk of infection in human beings by thirty-one percent and was safe.

专家说一种实验性的疫苗将人类感染的奉献降低了三分之一，并且这种疫苗是安全的。

Start "exercise of supervisory powers", the company is also the owner of the property to a request for maintenance documents, but these documents did members made depression : dozens of million documents in the hands of red cloth. there is even a third "act" invoices Jiaojuan, thrum, what are the things.

另一个小区的业委会虽然开始"行使监督权"了，物业公司也在业主的要求下交来了维修单据，但这些单据却让委员们发了愁：几十万元的单据拎在手里沉甸甸的，里面甚至有三分之一是"先斩后奏"的发票，胶圈、线头、乱七八糟的什么都有。

The bill of the Toco Toucan makes up about one-third of its body length and ornithologists have long wondered about the purpose for the appendage.

托科巨嘴鸟的喙大约占到体长的三分之一，鸟类学家很久以来对于不清楚这部分的目的。

Of the energy we use, and a transition to energy efficient buildings willcut our carbon emissions by one-third.

楼宇的耗电占我们能源消费的40%，节能楼宇的推广将使我们二氧化碳的释放减少三分之一。

Buildings consume 40 percent of the energy we use, and a transition to energy efficient buildings will cut our carbon emissions by one-third.

楼宇的耗电占我们能源消费的40%，节能楼宇的推广将使我们二氧化碳的释放减少三分之一。

For example, in Treasury bond futures, I take a third of my position off when I get four tics.

比如，债券期货，如果我赚了4个基点，我会平仓三分之一。

Leo Li, the director of curriculum at the school, agrees that the library has had a positive impact: after the children had a place to go after school where they would be supervised, the amount of roaming around and troublemaking markedly declined!

全校402位学生，超过三分之一（140人）接受书屋辅导的知本国中教务主任李信弘也同意，孩子有去处，有人管以后，在部落里游荡闹事的情况的确减少了！

The network has shrunk by roughly a third since its postwar heyday, but more trains now trundle up and down the country than ever before.

铁路网络从战后最高峰时期已经缩减了大约三分之一，但是现在有更多的火车在运行。

In 2006, the volume reached twenty thousand, occupying one third, which created a miracle in home an aboard.

在2006年，年成交额达到2.0万，占三分之一，创造了一个奇迹，在回家上。

But rates in the United States have increased by more than one-third in the last twenty-five years.

但美国的发生率在最近的25年间上升了三分之一。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。