When certain consonants meet ㄴ, ㅁ, or ㄹ, one of them changes into a nasal sound ([ㅇ], [ㅁ], [ㄴ]) or [ㄹ].
You can say 국물 [궁물], 음료 [음뇨], and 설날 [설랄] and write them correctly.
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