It is very alcoholic, sometimes near the strength of port.

它的酒精度很高，有时接近于波尔图葡萄酒的浓度。

《柯林斯英汉双解大词典》

Undenatured ethyl alcohol of an alcoholic strength by volume of less than 80% vol; spirits, liqueurs and other spirituous beverages.

未改性乙醇，按容量计酒精浓度在80%以下；蒸馏酒、利口酒及其他酒精饮料。

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Preparations based on odoriferous substanees, of a kind used for the manufacture of beverages, alcoholic strength by volume not exceeding 0.5% vol.

生产饮料用的以香料为基本成分的制品，按容量计酒精浓度不超过0.5%的。

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The campaign was launched in September by the police, who wanted to limit the ability of street drinkers to buy cheaper, high-strength alcoholic drinks at Ipswich's 122 off-licensed outlets.

BBC: Street drinker PHOTO: Thinkstock

Liquor must list alcohol content by volume and may also list proof, a measure of alcoholic strength.

NPR: Are Nutritional Labels Coming On Alcoholic Drinks