2 sentences for 之中 (zhī​zhōng — in the process of)

1. 案件仍在调查之中。

   àn​jiàn réng zài diào​chá zhī​zhōng.

   The case is still under investigation.

   Source: United Nations

2. 她的下一部电影已经在筹备之中。

   tā de xià yī bù diàn​yǐng yǐ​jing zài chóu​bèi zhī​zhōng.

   Her next movie is already in the works.

   Source: CCMatrix