What are the five hardest words in the world?

The most difficult word recently selected by netizens is "I'm sorry; I love you; Bee flower conditioner; Luna takes blue; Jasmine milk green ". At first glance, it was chosen by netizens in the south, and it was extremely unfriendly to friends who didn't care about nl. This stalk caused a lot of trouble as soon as it came out. The challenges of many netizens were posted on the short video platform.

Students without NL knowledge should know that NL is largely caused by the lack of the difference between N and L sounds in dialects. Many children only learned one aspect when they were young, and they didn't know how to pronounce the other sound.

The edge sound l, when pronounced, the tip of the tongue is close to the back of the upper gum, forming an obstruction; The soft palate rises, blocking the nasal passage and vibrating the vocal cords; When the airflow reaches the mouth, it passes through the gap formed between the sides of the tongue and the inside of the cheek, forming sound.

Nasal sound n, when pronounced, both sides of the tip of the tongue and the front part of the tongue are completely closed with the front upper part of the mouth, and then the tip of the tongue abuts against the upper gum to form obstruction; The soft palate descends and the nasal passages are opened; The airflow reaches the oral cavity and nasal cavity at the same time, and is blocked in the oral cavity, and the airflow comes out of the nasal cavity and becomes sound.

The reason why nl is not divided

Judging from the pronunciation position of the two sounds, the pronunciation position of the two sounds is the same, both in the middle of the tip of the tongue. That is to say, when these two sounds are pronounced, the tip of the tongue contacts the upper gum (that is, the upper gum), which constitutes an obstacle. So this is also the main reason why these two sounds are easily confused in many dialect areas. The original accurate "Grandma Liu sells durian milk" was changed to "Dairy cows sell milk every year".

It is not only the dialect that affects children's pronunciation, but also the mistakes in pronunciation position and air flow passage will affect them to distinguish N sounds from L sounds. When children begin to learn to speak, they don't judge whether their pronunciation is correct or not. They often read what their parents teach, so many children can't tell the difference between N and L sounds, which has a lot to do with their parents, the first teacher.

In addition to NL confusion caused by these pronunciation errors, the development of vocal organs will also affect children's speech, such as the soft palate behind the upper third of the oral cavity, which is also an important part of vocal organs. It has an intuitive name: the valve of nasal sound. If the development of soft palate is affected, it will also lead to NL differentiation.