It owns 500 hectares of vineyards in the Douro Valley.

河谷拥有 500 公顷的葡萄园。

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

大卫：河谷的特点是气候炎热，是山地葡萄栽培区。

Every September, a group of grape pickers from the villages of the Douro Valley is recruited to do the harvest.

每年九，都会从河谷的村庄招募一群葡萄采摘者来进行收获。

Although port wine bears the name of the seaport city of Porto, it is actually in the steep hillsides of the Douro Valley in northern Portugal that it has been made for centuries.

克劳迪娅：虽然波特酒以海港城市波尔图为，实际上是葡萄牙北部河谷陡峭的山坡上酿造的， 已有数百年历史。

And while regulations ensure that no other wine is labeled as port within the European Union, it may not be the case in other countries, like the US. So how do you spot authentic port from the Douro Valley?

虽然法规确保欧盟内没有其他葡萄酒被标记为港口， 美国等其他国家可能并非如此。那么如何辨别河谷的正宗港口呢？