Teacher Yao Huining of Xi 'an Huaxia Language Stuttering School explained that your problem is that N and L can't be distinguished, that is, the pronunciation is unclear, and the simple understanding is that it is put in the wrong position.
brief introduction
After a long time, it forms a habit of mispronunciation. After the habit is formed, the speech will be vague. Chinese characters in China are generally composed of initials and finals. If a syllable is mispronounced, it will affect more than half of our lives.
Xi An Huaxia Language and Culture Training College is a full-time school approved by the education authorities, specializing in training and learning in stuttering, lisping and eloquence.