堤坝: dam, dike...
月票: monthly ticket...
社区: community, neighborhood...
生: to be born, to give birth, life, to grow...
怨言: complaint...
无理: irrational, unreasonable...
乌黑: jet-black, dark...
回扣: brokerage, a commission paid to a middleman, euphemism for a bribe, a kickback...
腰: waist, lower back, pocket, middle, loins...
精密: accuracy, exact, precise, refined...
