Even if it's just one beer.

就算只是一杯啤酒也别喝。

youdao

Scientists in Canada found one beer a day reduced the risk of cataracts – a major cause of blindness in old age.

加拿大的科学家发现每天喝一杯啤酒可以降低得白内障——造成老年失明的主要原因——的风险。

youdao

One beer is always enough for me, but I love those little spicy meat balls and other snacks they put on the table free.

我总是喝一杯啤酒就够了，但是放在桌上的那些免费供应的香喷喷的小肉丸子和其它点心我可真爱吃。

youdao

My brother planned to have a glass of beer with his friends a quick one C before he went home.

VOA: special.2009.07.19

One drink equals a bottle or can of beer, a medium glass of wine or a very small glass of liquor.

VOA: special.2009.09.08

David Fankhauser is not one of the Root Beer Brothers.

VOA: special.2011.08.01

And I can drink one beer and my mother would call me drunk.

NPR: Homeless Alcoholics in Seattle Find a Home

You will find yourself in the midst of a sensory assault as you soak up the aroma of roast chicken and bratwurst, pick out a colourful gingerbread heart to take home to your loved ones and avert your gaze from the pimply-faced teen who has had one beer too many.

BBC: Oktoberfest turns 200

One more beer, out at the pool.

NEWYORKER: Bullfighting