This man-made waterway—known in China as Da Yunhe—is 1,700 kilometers long and some parts of it are more than 2,000 years old.

这条人造水路——在中国被称为大运河——长1700公里，其中一些部分已经有2000多年的历史了。

youdao

Technical, stylistic and material composition evidence also point to it being a da Vinci.

无论是从技术，风格和材料成分上来看，都无疑证明了是达·芬奇的作品。

youdao

So, for example, the area of region is the double integral of just dA, 1dA or if it helps you, one dA if you want.

举个例子，区域R的面积是dA的二重积分，便于理解，在这里写成。

youdao

They do not know why da Vinci painted it, or how it ended up in the collection of French ruler Francis the First.

VOA: special.2010.06.23

It is Leonardo da Vinci's "Mona Lisa."

VOA: special.2010.06.23

Granda said about me getting one but it was my da, he did not like them.

NPR: Excerpt: 'Kieron Smith, boy'

Who'da thunk it a few years back: a once seemingly Jurassic-era occupation commanding a high salary?

FORBES: Fact and Comment

He got it off somebody whose da worked in the docks.

NPR: Excerpt: 'Kieron Smith, boy'