Port is what you considered a fortified wine.

波尔图萄酒是你所认为的烈萄酒。

This looks like a dessert wine glass, that you would serve port out of, or fortified wine out of.

款杯子更像是用来盛甜酒的杯，比如波特酒或加萄酒。

It's wine that's been made, and then you add alcohol to it to fortify the wine.

是已经酿制好的萄酒，然后你在里面加入酒精来化萄酒。