对于哺乳动物来说，这是既哺乳期后最花费精力的要尽的双亲责任。

After breastfeeding, it is the most energetically expensive parental duty known to mammals.

youdao

这可能意味你完全地将你的心理或身体参与进一个追求，这追求不与你花费精力的工作相关。

This could mean completely involving your mind or body in a pursuit that has no relationship with the task you expended energy on.

youdao

钱已经使黑客活动脱离了仅仅是为了获得乐趣以及名声的领域，已经转变成了一个需要大量专注以及花费精力的活动。

Money has taken hacking out of the domain of fun and fame and moved it to an activity that demands serious attention and effort.

youdao

And this course in particular isn't at the end of the day about programming even though that is in fact how you will spend a good amount of your time and the skill that you will in fact walk away with.

尤其特别的是,这门课程最终的目标,不是教会你编程,尽管编程会花费你们大量的时间和精力。

哈佛公开课 - 计算机科学课程节选

Milton has expended, we know, a considerable amount of energy in establishing what he wants us, I am assuming, to believe is the divine authority behind the poem.

我们知道弥尔顿花费了，大量精力阐释他希望我们相信的东西，我设想，他要我们相信在这部诗篇的背后有无上神权的存在。

耶鲁公开课 - 弥尔顿课程节选

spent a lot of time and effort kind of figuring out what is it that people will want to buy next week.

他花费了很多的时间和精力来研究,人们想要在下个星期买进什么。

耶鲁公开课 - 金融市场课程节选