We've worked so hard over the years.

过去的几年里我们一直努力工作。

youdao

We have worked hard over the last few years to lay this foundation.

过去几年来，我们在努力打好这个基础。

youdao

Although we may put forth our best efforts in training and racing, progress doesn't come nearly as rapidly or easily when you've been working hard over the course of months and years.

而在我们已经努力训练了几个月以及几年之后，尽管在训练和比赛中付出了最大的努力，那进步也不会那样迅速和容易了。

youdao

Walking through these historic areas, visitors today might find it hard to believe that a deadly storm swept through the city over four years ago.

VOA: special.2010.01.22

I actually do get worked up over these things because it drives me nuts because these are not hard problems to solve and yet consistently throughout society and your own laptops there are dozens of examples I'm sure of poorly designed software.

我确实对这些东西很生气,因为它令我发狂,因为这不是很难解决的难题,然而贯穿整个社会,在你自己的笔记本上，我确信有很多这样,设计地很挫的软件的例子。

哈佛公开课 - 计算机科学课程节选

There's been a lot of work done on these over the years, but in fact, it's pretty hard to invent a good hash function. So my advice to you is, if you want to use something was a hash, go to a library. Look up a good hash function.

已经做过了很多的尝试和努力,但是事实是，很难发明出一个好的哈希函数,所以我给你们的建议是,如果你们想使用哈希功能,到函数库中查找一个好的哈希函数。

麻省理工公开课 - 计算机科学及编程导论课程节选

"We have worked very hard over past two years to get to this point, " Al-Thani continued.

BBC: Russia & Qatar will host the 2018 and 2022 World Cups

"I've worked pretty hard over the winter and... it's a great feeling to get those rewards, " Harrison said.

BBC: Glamorgan's David Harrison delighted at wicket haul

Through working hard over the next 15 years, we want Hefei to be the Silicon Valley of China.

NPR: China Seeks Cheaper Labor Within Its Borders