Inferential activity is likely only when consumers are motivated and able to engage in effortful cognitive processes.

只有当消费者被激励并能够经历费力的认知过程时，推理活动才可能发生。

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This structured knowledge is built by years of effortful study.

结构化知识非历经数年苦功不可得。

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It takes about ten years of effortful study to become an expert

成为一名专家=十年的时间+刻苦学习

youdao

His entire presence said positivity not in a screaming, effortful way, but in a natural, grounded way.

FORBES: The Five-Step Plan To Get Your Mojo Back

If the IRS and other permanent institutions of government are fundamentally corrupt, reforming them would be much more complicated and effortful.

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Occasionally, she does a round of the street and casts us out one by one, which is effortful and very time-consuming.

NEWYORKER: Magda Mandela