And perfectionists can never truly relax: every hour in the day must be used productively.

主义者永远无法获得放松：一天中的每一个小时都要高效高产。

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It's considered public property that wouldn't otherwise be used productively, so one helps oneself.

公共财产换句话说被认为不可能被高效地使用，所以人们就自己开始行动了。

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Similarly, CCM configuration is so complex that it cannot be used productively without employing additional tool support.

类似地，CCM的配置也是如此复杂以致如果没有使用附加工具的支持，难以产生有效的结果。

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So it has to be used productively and in response to the dictates of the consumer market.

FORBES: Magazine Article

Housing prices, not surprisingly, soared about 20% that year as money, which could not be used productively, was diverted for speculative purposes.

FORBES: China's Property Sector, Just Before The Crash

He says "alert listening" could be used productively instead of maliciously.

WSJ: Job Fears Make Offices All Ears