fifths
n. 第五；五分之几；五等品（fifth 的复数）
例句
She cut the cake into fifths.
她把蛋糕切成五块。
《牛津词典》
About three fifths of them do.
大约五分之三的人这样做。
Among all these books, three fifths of them are for children to read.
所有这些书中，有五分之三是给孩子们读的。
