4 sentences

1. 他是证券交易所里的交易大户。

   tā shì zhèng​quàn jiāo​yì​suǒ lǐ de jiāo​yì dà​hù.

   He is a major trader on the stock exchange.

   Source: Dong Chinese Dictionary

2. 在这个小镇上，他们家可是个大门大户。

   zài zhè​ge xiǎo​zhèn shàng, tā​men jiā kě​shì gè dà​mén dà​hù.

   In this small town, their family is quite a prominent household.

   Source: Dong Chinese Dictionary

3. 在大户的操纵下，散户被当作韭菜收割了。

   zài dà​hù de cāo​zòng xià, sǎn​hù bèi dàng​zuò jiǔ​cài shōu​gē le.

   Under the manipulation of big players, retail investors were harvested like leeks.

   Source: Dong Chinese Dictionary

4. 在旧社会，这个村子里的土地都归几家大户所有。

   zài jiù shè​huì, zhè​ge cūn​zi lǐ de tǔ​dì dōu guī jǐ jiā dà​hù suǒ​yǒu.

   In the old society, the land in this village was owned by a few wealthy families.

   Source: Dong Chinese Dictionary