sustainern.支撑的人物；主发动机；维持者sustainvt.支持；承受；维持；认可；经受sustainable land use土地可持续利用sustaining mechanism维持机制Sustainable Forestry可持续林业sustained engagement不断的接触sustaining programme非商业(性)节目sustainable antidote持久的对策sustainable function永续功能sustainable tranffic可持续交通sustainable landfill可持续填埋sustain a great loss蒙受重大损失