the act of sustaining life by food or providing a means of subsistence;
"they were in want of sustenance"
"fishing was their main sustainment"
双语例句
用作名词 (n.)
Raytheon Company has partnered with The Boeing Company to bid for the U.S.Air Force's Counterspace Command and Control Sustainment contract. 近日，雷声公司与波音公司共同对美国空军反空间的指挥与控制支持合同进行了投标。
