Je was op zoek naar: one out of five (Engels - Chinees (Vereenvoudigd))

one of five elders
五老之一

choosing one out of two
二选一

only one out of ten survive
十不存一

less than one out of ten survived
十不存一

one out of three were girls.
三分之一是女童。

one out of 10 are saving enough.
10个人里面有一个人 存的钱是足够的。

well, move the blue one out of the way.
额，把那个蓝色的移走。

one out of five children die before reaching the age of five.
每五个儿童中有一个在五岁以前死去。

by 2050, one out of every five will be an older person.
到2050年时，每五人中将有一人是老年人。

about one out of every five districts has no secondary school.
学校设施很差，每五个县就有一个县没有中学。

consensus is achieved by four votes out of five.
五票中四票意见相同即为一致。

you get one out of 20, one out of 30 products.
1/20，1/30的产品被卖出去了。

one out of 14 of our country's citizens died.
在我国，每14个公民中就有1人丧生。

however, the region already accounts for one out of five global infections.
但是,在全球每5名感染的病例中就已经有一名是在该区域。

in the civil service commission, there is one female out of five commissioners.
公务员制度委员会共有五名成员，其中包括一名妇女。

economic and social council: one woman (treasurer) out of five members
经济和社会理事会成员：5人，其中1名女性为总务主任；

currently, one out of every 35 persons was a migrant.
在当今世界，每35个人中就有一个是移民。

15. four out of five reporting countries responded to this question.
15. 在5个提交报告的国家中有4个回答了这个问题。

i should mention that three out of five speakers were women.
我谨指出，发言者中，五分之三的人是妇女。

34. four out of five african subregions have completed their sraps.
34. 非洲五个分区域中已有四个完成分区域行动方案制定工作。