White wine is the product of the fermentation of pure grape juice obtained from grapes by extraction from grapes.

白葡萄酒是从葡萄中提取纯葡萄汁发酵得到的产品。

youdao

Vinifera has been honed into hundreds of varieties, red and white; but the grapes are all still members of the same species, with limited cross-breeding between different varieties.

欧亚葡萄已经被培养出几百个变种，或红或白；但是这些葡萄跟其他品种的葡萄杂交的几率非常的小，所以它们仍然属于同一种类。

youdao

Grapes are purple and Onions are white.

葡萄是紫色的。洋葱是白色的。

youdao

Sauvignon Blanc and Riesling are other well known white grapes.

VOA: special.2010.10.13

For example, in Italy's Piedmont region there are familiar white grapes like Moscato and Gavi, as well as lesser known varietals like Erbaluce and Arneis.

WSJ: The Unique Charms of 'Miscellaneous Wines' | On Wine by Lettie Teague

What about white grapes?

WSJ: Wine and Food: Pairing Without Overthinking | On Wine by Lettie Teague

The two white grapes, Chenin Blanc and Pinot Gris, went well with almost everything the pork, the chicken, the pasta and the salmon all fit, and the wines were rich and viscous but also minerally and clean. (I tasted both domestic and imported examples of each grape.) The only sticking point was, unsurprisingly, the steak.

WSJ: Wine and Food: Pairing Without Overthinking | On Wine by Lettie Teague