Ripe: The stage at which the grapes' many components have reached maturity. As a grape ripens, sugar content increases and acidity decreases. Flavor compounds develop and the stems turn from green to brown, indicating that the tannins in the stems, seeds and skins are softening.
成熟: 葡萄果实中的各种成分都达到成熟标准的阶段。当葡萄成熟时,糖度增加,酸度下降。当风味物质发展起来,果梗由绿色变成棕褐色,就表明果梗、葡萄籽和葡萄皮里的单宁已软化。