你知道地球四分之三是被水覆盖的吗？

Do you know three quarters of the earth is covered with water?

youdao

所有这些书中，有五分之三是给孩子们读的。

Among all these books, three fifths of them are for children to read.

youdao

这个班有50个学生，其中五分之三是男孩，所以男孩的人数是30。

There are fifty students in this class, three fifths of them are boys, so the number of the boys is 30.

youdao

When I reflect on the first couple of years of Baidu's operation, I think there are three things that's very critical.

当我回想百度最初的那几年，有三件事是非常重要的。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

Well, it's a long time ago but it was elementary school, you know, maybe 3rd grade, 4th grade,

那是很久以前的事情了，应该是小学时候吧，那大概是三年级或者四年级，

美国的博物馆教育 - SpeakingMax英语口语达人

Then you get to 2 and 3 John, two letters that are written to "the elected lady and her children."

然后是约翰二书和约翰三书，这两封信都是写给,“蒙拣选的太太和他的儿女“

耶鲁公开课 - 新约课程节选