The Douro Valley is characterized for being a region of mountain viticulture in hot climate.

大卫：杜罗河谷特点是气候炎热，是山葡萄培。

That could be valuable in parts of viticulture's New World, such as Australia, where vines remain ungrafted and phylloxera is still a problem.

这在葡萄世界部分能很有价值，比如澳大利亚，在这些方，葡萄藤仍是非嫁接，并且根瘤蚜虫仍是一个问题。

I could tell you that I'm an expert in viticulture, the growing and harvesting of grapes, and I personally vouch for how awesome they are.

我以告诉你，我是葡萄培、葡萄种和收获方面专家，我个人保证这葡萄有多么好。