the act of sustaining life by food or providing a means of subsistence;
"they were in want of sustenance"
"fishing was their main sustainment"
例句
用作名词 (n.)
Reliability of theory and sustentation of practice indicate that process design system is viable under the environment of net. 理论的可靠和实践的支持表明，在网络环境中构建工艺规程设计系统是完全可行的。
Without matter, there would be no sustentation for function activities. 没有物质，功能活动就无法维持。
美
[ˌsʌsten'teɪʃən]
