sustainable
/səˈsteɪnəbl/adjective
1- able to be maintained at a certain rate or level能保持一定速度（或水平）的, 能持续的, 能保持的：
sustainable fusion reactions.
持续的核聚变反应。
1.1
- Ecology (especially of development, exploitation, or agriculture) conserving an ecological balance by avoiding depletion of natural resources【生态】（尤指发展、开采或农业）可持续性的。
1.2
- able to be upheld or defended站得住脚的：
sustainable definitions of good educational practice.
有关良好教育实践的那些站得住脚的定义。
派生词