Question

알코올 한 단위는 맥주 반 파인트와 동일한 양이에요 Expressions of comparison and contrast require the use of a particle conveying the meaning of 'with' or 'and'.All three principles -과/와, -하고, and -(이)랑 mean 'and' or 'with'. -하고 and -(이)랑 are viewed as spoken forms and tend to be used in casual situations. -(이)랑 sounds the most informal and should be avoided in more polite speech. -과/와 is a formal written form applied in formal structured speech.

Accepted Answer

One unit of alcohol is equal to half a pint of beer

Front	알코올 한 단위는 맥주 반 파인트와 동일한 양이에요
Back	One unit of alcohol is equal to half a pint of beer
Notes	Expressions of comparison and contrast require the use of a particle conveying the meaning of 'with' or 'and'. All three principles -과/와, -하고, and -(이)랑 mean 'and' or 'with'. -하고 and -(이)랑 are viewed as spoken forms and tend to be used in casual situations. -(이)랑 sounds the most informal and should be avoided in more polite speech. -과/와 is a formal written form applied in formal structured speech.

이)랑 Speech Formal 알코올 한 단위는 맥주 반