productive
adj. 能生产的,有生产价值的,多产的
例句:
She was elected a productive worker.(形容人)
她被选为劳动能手.
I spent a very productive hour in the library.(形容时间)
我在图书馆里的这一小时收获很大.
They work hard, but their efforts are not very productive.(形容工作)
他们很努力,但效率不太高.
productive farmland; his productive years(形容日子); a productive collaboration.
多产的农田;他的多产年;多产的合著.