Doctors aim to cut the number of women dying from cervical cancer by half this decade.

医生们这十年的目标在于使死于宫颈癌的妇女人数减少一半。

《柯林斯英汉双解大词典》

This year city services will separate for recycling enough refuse to reduce the number of truckloads of refuse to be incinerated to half of last year's number.

今年，城市服务部门将对垃圾进行分类回收，从而将垃圾焚烧的卡车数量减少到去年的一半。

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All had the same number of calories over the day, but half had breakfast, while the other half did not.

所有人在一天中摄入的热量是相同的，但其中一半人吃早餐，另一半人不吃。

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The delegates in Rome promised to continue efforts to reduce by half the number of hungry people by two thousand fifteen.

VOA: special.2009.11.23

The number of electrons in an atom is deduced to be approximately equal to half the atomic weight.

原子中的电子数,将近是原子质量的一般。

麻省理工公开课 - 固态化学导论课程节选

We'll get to oxidation number in the second half of this course, but it's not in any way the same idea as formal charge.

我们会在课程的后半部分讲到氧化数，但它和形式电荷完全不是同一个概念。

麻省理工公开课 - 化学原理课程节选

British telecom giant and Verizon Wireless co-owner Vodafone could also make a play, divesting itself of its Verizon interests, under the theory that having all of the number three carrier is better than half of number two.

FORBES: Now, How Do They Plug It In?

The actual number of new jobs was not even half the number expected.

FORBES: Look, Ma, I Found 923,000 Jobs and $48 Billion

In December less than half the number of companies announced new stock buybacks, less than half the dollar amount of new cash takeovers of already public companies were announced and insiders are also buying less than half as much as during all of 2011.

FORBES: What Happens If Corporate Buying Turns Negative?