来自operate,操作，-able,形容词后缀。

1. When will the single currency be operable?

什么时候实行单一货币？

2. Its features are normative, qualificative, operable, inheritable and changeable.

它的特征是规范性 、 限定性 、 可操作性 、 传承性和变迁性.

3. Finally, improve operable measures of optimizing service quality as the case.

最后针对该小区具体情况, 提出了可操作的优化服务质量的措施.

4. And if the condition gets worse, is it operable?

如果情况更糟, 那还能做手术 吗 ?

5. Are all rescue craft still operable?

所有救生船都处在工作状态 吗 ?