A DNA-based vaccine wouldn't have to be grown in chicken eggs, doing away with the time-consuming and finicky manufacturing process of the current flu vaccine.

VOA: standard.2010.07.21

And frankly it would be incredibly time-consuming and tedious for me, to count this room full of people old school style-- 1, 2, 3 and so forth.

坦白说，按学校的老办法一个人一个人的数,1个，2个，3个……,对我来说极其费时费力。

哈佛公开课 - 计算机科学课程节选

But it's really difficult and really time-consuming.

但是很难，很花时间。

要成为建筑家 - SpeakingMax英语口语达人

The country is large and travel is difficult and time consuming.

VOA: standard.2009.11.05

And that's, you know, very time-consuming.

这个非常费时间。

对体育项目的热爱 - SpeakingMax英语口语达人

People in developing countries today are consuming nearly twice as much milk, more than three times as much meat and five times as many eggs as they did five decades ago, according to the FAO report.

VOA: standard.2010.02.22

But what this study found was people were asked to estimate how much food they were consuming and how many calories they were burning through physical activity.

但是这个研究发现,当人们被要求估测,他们吃了多少食物,通过体育运动消耗多少卡路里时

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And then the investigators actually measured these things, and found that with reported and actual energy intake, how many calories people were consuming, there was really quite a difference.

研究人员实际上得到了以下结果,实验对象汇报的和实际的能量摄入,也就是人们摄入的卡路里,两者有较大差异

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选