If something is three-quarters full, it contains three out of the four quarters of the amount or number it can contain. If something is three-quarters empty, it contains a quarter of the amount or number it can contain.
We were left with an open bottle of champagne three-quarters full.
有人留给我们一瓶打开过的、还剩3/4的香槟酒。
The stadium was three-quarters empty when the match began.
比赛开始时,该体育馆有四分之三空座。
Three-quarters is an amount that is three out of four equal parts of something.
Applications have increased by three-quarters.
求职信增加了3/4。
Three-quarters is an amount that is three out of four equal parts of something.
Three-quarters of the students are African American.
3/4的学生是非洲裔美国人。