It's something that has never been undertaken before.

这件事是以前我们没做过的。

Sounds like a big project. Isn't it too big for one country to undertake?

听起来像是一个大工程，由一个国家来完成的话是是量太大了？

Then there are a number of actions that have been undertaken.

其次是采取了多项行动。

Brexit is one of the most challenging projects ever undertaken by parliament.

英国脱欧是议有史以来最具挑战性的项目一。

This will be the most dangerous voyage he will ever undertake.

这将是它从未遇到过的最危险旅程。

D-Day marks the biggest air, land and sea operation ever undertaken.

“D-Day”是史上规模最大的海陆空行动。

I'm pretty sure we wouldn't have undertaken polio without that example.

我很确定，如没有这个例子，我们感染脊髓灰质炎。

She also promised that the commission would undertake a comprehensive reform of the electricity market.

她还承诺，该委员将对电力市场进行全面改革。

A student revealed that if her teacher gives five problems, she will undertake ten.

一位学生透露，老师若是布置五道题，她做上十道。

They encouraged their children in their studies but did not undertake the work for them.

在学习方面他们给孩子以鼓励，而是代劳。

They undertake this perilous journey for food.

他们肩负着这趟涉险寻食旅。

UN agencies have been undertaking such prevention focused initiatives in many parts of the world.

联合国机构已经在世界上很多地区，展开各类以预防为主的项目。

In 2003, purpose was just one element of a much larger strategic transformation that Delta Airlines undertook.

2003年，企业目标只是达美航空进行战略切换的一个很小的组成部分。

And maybe you're undertaking some less formal training.

也许你正在接受一些非正式的培训。

He undertakes the country's first whistle-stop press tour.

他开创了在小地方短暂停留发表演说的先河。

Unsurprisingly, politicians are often reluctant to undertake these measures.

毋庸置疑，政界人士往往愿采取这些措施。

I undertake today to be the custodian of the dreams of all.

我今天向你们保证，我要实现我们的所有梦想。

They can never be relied upon to do well anything they undertake.

你永远能指望他们做好任何工作。

There are men who always fail in whatever they undertake, simply because they are 'behind time.

这些人，无论他们从事何种工作，失败总是与形影离，唯一原因过在于他们“迟到或晚点”。

That's a big step to undertake, and needs proper contemplation and skepticism.

这是一大步，需要适当的思考和怀疑。