来龙去脉: the rise and fall of the terrain (idiom), the whole sequence of events, causes and effects...
人: person, people...
道具: prop (theater), paraphernalia, (gaming) item, artifact...
艾滋病: AIDS (loanword)...
有利于: to be advantageous to, to be beneficial for...
体系: system, setup...
废物: rubbish, waste material, useless person...
一线: front line...
吹: to blow, to play a wind instrument, to blast, to puff, to boast, to brag, to end in failure, to fall through...
束缚: to bind, to restrict, to tie, to commit, fetters...