productive

adj. /prəˈdʌktɪv/ B1

富有成效的；多产的

Producing a large amount of goods, crops, or satisfactory results.

仙境例句

It was a productive morning in the clock shop: six watches mended, and not one of them late.

钟表店这个上午很有成效：修好了六块表，没有一块走慢的。