a. capable of being sustained
a. 足可支撑的, 养得起的, 可以忍受的
1. We should use sustainable energy sources to protect the environment.
我们应该使用可持续的能源来源来保护环境。
2. Many companies are trying to adopt sustainable practices in their production.
许多公司正努力在生产中采用可持续的做法。
3. Sustainable farming helps to preserve natural resources for future generations.
可持续农业有助于为未来的世代保护自然资源。