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.

我可以告诉你，我是栽培、植和收获方面的专家，我个人保证有多么好。

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

栽植新世界的部分地区可能很有价值，比如澳大利亚，地方，藤仍是非嫁接的，并且根瘤蚜虫仍是一个问题。

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

大卫：杜罗河谷的特点是气候炎热，是山地栽培区。