没有前缀。
product+-ive-形容词后缀。
adj. 能生产的生产的，生产性的多产的富有成效的
The company decided to implement this productive approach.
公司决定采用这种富有成效的方法。
Mo Yan is a productive novelist and he had more than five books published last year.
莫言是位高产的小说家，他去年出版了超过五本书。
We had a very productive meeting and we solved lots of problems.
我们开了一次很有成效的会议 解决了很多问题。
Overall， I'd say that we had a very productivemeeting this morning.
总体来说，我觉得我们早上的会议很有效率。
