productive activity造句

1、Human's material productive activity and moral spirits contain each other.
人类的物质生产活动与道德精神是相互蕴涵的。

2、It places human productive activity at forefront.
它把人类的生产活动放到首位。

3、Problem solving is not only a productive activity process, but also an advanced learning process.
问题解决既是一项创造性的实践活动，又是一个高级的学习过程。

4、The problem is, planning can way too often move from a productive activity to diminishing returns.
问题是，计划会常常从一个有生产力的行为变成减少回报的行为。

productive activity翻译