the act of sustaining life by food or providing a means of subsistence;
\\\"they were in want of sustenance\\\"
\\\"fishing was their main sustainment\\\"
造句
用作名詞(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，雷聲公司與波音公司共同對美國空軍反空間的指揮與控制支持合同進行了投標。