Kvass is a mild beer that is sometimes used in Russian cooking for its sour flavor.克瓦斯啤酒是一种淡啤酒，因为带有酸味有时会在俄式烹调中使用。He had a small glass of lager with his meal.他吃饭时喝了一小杯淡啤酒。A pint of lager and a half of Guinness, please.请来一品脱淡啤酒，半品脱吉尼斯黑啤酒。Two pints of lager and a packet of crisps, please.来两品脱淡啤酒和一包炸馬鈴薯片。