productive

形容词 productive:

1. producing or capable of producing (especially abundantly)
2. having the ability to produce or originate
   同义词：generative
3. yielding positive results
4. marked by great fruitfulness
   同义词：fat, fertile, rich

1. She was elected a productive worker.
   她被选为劳动能手。
2. I spent a very productive hour in the library.
   我在图书馆里的这一小时收获很大。
3. They work hard, but their efforts are not very productive.
   他们很努力，但效率不太高。

pro.duc.tive

adj.（形容词）
Producing or capable of producing.
生产性的：生产的或能生产的
Producing abundantly; fertile.See Synonyms at fertile
多产的，富饶的：能大量生产的；肥沃的参见 fertile
Yielding favorable or useful results; constructive.
得益的：富有成效的或结果有用的；建设性的
Economics Of or involved in the creation of goods and services to produce wealth or value.
【经济学】 生产性的：创造价值或财富的产品或服务的创造的或从事之的
Effective in achieving specified results; originative:
能生产…的：创造特定结果有效的；创新的：
例句：
policies productive of much harm.
带来许多害处的政策

Medicine
【医学】
Producing mucus or sputum:
分泌粘液的或生痰的：
例句：
a productive cough.
排痰性咳嗽

Forming new tissue:
生成新组织的：
例句：
a productive inflammation.
生成新组织的炎症

Linguistics Of or relating to the linguistic skills of speaking and writing.
【语言学】 有构词能力的：说与写的语言技巧的或与之有关的

【引伸】
produc.tively
adv.（副词）
produc.tiveness
n.（名词）