英 [ˈefətfʊl]
adj. 需要努力的；显示努力的；充满努力的
requiring great physical effort
... 显示不当 = contraindicating 显示努力 = effortful 显示全貌 = panoptic ...
充满努力的(effortful), 此释义来源于网络辞典。
effortless 容易的；不费力气的
effort 努力；成就
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。
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。
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
His entire presence said positivity not in a screaming, effortful way, but in a natural, grounded way.
If the IRS and other permanent institutions of government are fundamentally corrupt, reforming them would be much more complicated and effortful.
WSJ: Best of the Web Today: Why Did Lois Lerner Take the Fifth?
Occasionally, she does a round of the street and casts us out one by one, which is effortful and very time-consuming.