第四等级的英文：
the fourth estate

The gallery in which the reporters sit has become a fourth estate of the realm.
新闻记者坐的席位已经成了王国的第四等级。

She was but just the fourth.
她只得了第四名。

Thailand is the fourth largest exporter of chicken.
泰国是世界第四大鸡类出口国。

Time is sometimes called the fourth dimension.
时间有时候被称作第四维。

You broke your leg in the fourth quarter.
你在第四节弄断了腿。

The lift bell pinged at the fourth floor.
电梯铃在第五层响了。

Convention on Succession and Administration of Estates
遗产继承和管理公约

To hold an estate in fee simple
持有无限制的完全保有土地所有权的地产

Certain estates are labelled as undesirable.
某些物业被归入不受欢迎之列。

The estate was fringed with stately elms.
那片地以挺拔的榆树为边界。

You allude perhaps to the entail of this estate.
你大概是说产业的继承权问题。