Korean · Pronunciation Guide
eu-ro. The first vowel is the lip-spread ㅡ and the second block carries a tapped r; after a vowel or a ㄹ the whole particle shortens to just 로.
euro
Two unstressed beats, or one when the noun ends in a vowel and the particle reduces to 로. That alternation is the practical timing issue: the same grammatical marker is sometimes a syllable longer than at other times, and choosing the wrong length is what makes a phrase sound bumpy.
Listen: 으로
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
이것으로 주세요.
Igeoseuro juseyo.
I'll take this one, please.
Listen: 이것으로 주세요.
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
이것으로 주세요 attaches the full 으로 to the consonant-final 이것, and the ㅅ batchim of 것 -- silent on its own -- resyllabifies and returns as a real s: i-geo-seu-ro. That is one of the clearest demonstrations in the language of a hidden final consonant surfacing.
Rounding ㅡ into 'oo' gives 우로, and the mistake is nearly universal because English has nothing to map this vowel onto. Spread the lips deliberately. The second error is the r: a curled American r drags the syllable out, when Korean wants a single quick tap that is over before you notice it.