I did not check your answer, but allow me to say your 脑筋急转 is somwhat borning - can I give you an actual 脑筋急转 for you to think of??
do people have to shoot at another people to make their chance of survival greater ? hint: How about shot in the air if that's an better option?
do people have to shoot at another people to make their chance of survival greater ? hint: How about shot in the air if that's an better option?