It's just very time consuming to get such a large quantity of data.

要收集这么多的数据就是非常耗时。

《柯林斯英汉双解大词典》

Going to court can be an expensive, time-consuming, and gut-wrenching experience that is best avoided.

上法庭会是种费钱，费时间，并带来精神痛苦的经历，最好能加以避免。

《柯林斯英汉双解大词典》

The complaints procedure is clumsy and time-consuming.

申诉程序复杂耗时。

《牛津词典》

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

Simply finding dependable editors, book designers, cover designers, printers and other suppliers is amazingly time-consuming, especially the first time you do it.

FORBES: Crowdfunding: An Opportunity For Agents As Well As Authors

"That meant rebuilding them from scratch" -- a time-consuming effort.

CNN: Computer virus hits U.S. drone fleet

But it will be nerve-wracking and time-consuming.

ECONOMIST: Russia's central bank