世袭: succession, inheritance, hereditary...
关头: juncture, moment...
富足: rich, plentiful...
成本: (manufacturing, production etc) costs...
四肢: the four limbs of the body...
赞同: to approve of, to endorse, (vote) in favor...
剧院: theater...
敲门: to knock on a door...
交集: intersection (symbol ∩) (set theory)...
削弱: to weaken, to impair, to cripple...
