the Three Estates

常见例句

All members were apparently expected to progress through the first four ranks, while only a few would go on to the three higher ranks.
所有成员都很明显是期待去通过头四个等级来进展，只有少数几个会进入后面三个更高的等级。
Countries are divided into three groups, or tiers, based on how well they meet the requirements of the Trafficking Victims Protection Act.
国家可以按照它们达到人口贸易受害者保护法案要求的程度分为三个等级，或三个层次。