2 sentences

1. 唐朝政府的行政机构中下设六曹，分管不同事务。

   Táng​cháo zhèng​fǔ de xíng​zhèng jī​gòu zhōng xià​shè liù cáo, fēn​guǎn bù​tóng shì​wù.

   The administrative structure of the Tang Dynasty government included six departments in charge of different affairs.

   Source: Dong Chinese Dictionary

2. 这个主课题下设三个子课题，由不同的小组负责完成。

   zhè​ge zhǔ kè​tí xià​shè sān gè zǐ kè​tí, yóu bù​tóng de xiǎo​zǔ fù​zé wán​chéng.

   This main project is divided into three sub-projects, which are being completed by different teams.

   Source: Dong Chinese Dictionary