4 sentences

1. 我们要去各地考察调研。

   wǒ​men yào qù gè​dì kǎo​chá diào​yán.

   We are going to various places for inspections and research.

   Source: Dong Chinese Dictionary

2. 目前该项目仍处于先期调研阶段。

   mù​qián gāi xiàng​mù réng chǔ​yú xiān​qī diào​yán jiē​duàn.

   The project is still in the preliminary research stage.

   Source: Dong Chinese Dictionary

3. 他奉上级的指示，到基层进行实地调研。

   tā fèng shàng​jí de zhǐ​shì, dào jī​céng jìn​xíng shí​dì diào​yán.

   He went to the grassroots level for field research following instructions from his superiors.

   Source: Dong Chinese Dictionary

4. 市场调研对企业制定发展战略至关重要。

   shì​chǎng diào​yán duì qǐ​yè zhì​dìng fā​zhǎn zhàn​lüè zhì​guān​zhòng​yào.

   Market research is crucial for enterprises to formulate development strategies.

   Source: Dong Chinese Dictionary