投案自首

 投案自首

tou2 an4 zi4 shou3

to turn oneself into the police. to surrender. q.v. to throw in the towel.

lit.: throw case self chief

主动自首　zhu3dong4zi4shou3

to turn oneself into the police. to surrender. q.v. to throw in the towel.

lit. concentrate movement self chief

https://www.youtube.com/watch?v=OXuiHs8sFnQ

Check the upload date, cross correlate. 

This is one of my friendlier watchers. There Are others less friendly.

Thanks for the lesson! :D