1ADJ-GRADED [usually ADJ n](资源)可再生的,可更新的Renewable resources are natural ones such as wind, water, and sunlight which are always available. (资源)可再生的,可更新的
...renewable energy sources.
可再生能源
2N-COUNT [usually plural]可再生资源Renewables are natural energy sources such as wind, water, and sunlight which are always available. 可再生资源
3ADJ (合同或协议)可延期的,可续签的 If a contract or agreement is renewable, it can be extended when it reaches the end of a fixed period of time. (合同或协议)可延期的,可续签的
A formal contract is signed which is renewable annually.