A. The psychological trauma of soldiers who fought in the trenches
The Warring States Period (475–221 BC) was an era of division in ancient China. After the relatively peaceful and philosophical Spring and Autumn Period, various states were at war before the Qin state conquered them all, and China was reunited under the Qin Dynasty.
1st: co-workers
2. talk
this is all i can think of i hope i atleast helped you