更费力 meaning in English

quicker and strenuous

I was working smarter ? ? not harder
我只是在更科学而不是更费力地工作。
High blood pressure means that the heart has to work harder to carry blood to the vital organs in the body
高血压意味着心脏不得不更费力的将血压输送到身体中重要的器官。
Primary source materials and video resources are much more available than for the 40s covered by the last volume . hence , the number of words and stills has also increased , constituting harder editing and translation work
由于影片数量激增，编译更费力，而且原始文献及影像资料远较四十年代丰富，全卷书的字数及图片都相应增多。
It remains to be seen whether incentives ranging from baby bonuses to free mobile phones can persuade couples to open their lives to something more demanding - - though infinitely more rewarding - - than a chihuahua
和吉娃娃相比，生儿育女可以带来无限的回报，不过也比吉娃娃更费力气，所以从婴儿奖金至免费移动电话的一系列物质刺激是否能够说服夫妻们向它敞开自己的生活，这还有待观察。