What kind of tongue can't pronounce Spanish?

If the lace is too short, you can't make a big tongue sound.

Tongue frenulum is too short, which means that after the child is born, the tongue frenulum does not retreat to the base of the tongue, so that the tongue cannot extend out of the mouth and the tip of the tongue cannot be upturned. The prevalence rate is 4% ~ 5%, and the ratio of male to female is 2.3 ~ 2.7: 1.0.

Normal tongue strap can make the tongue move freely, and the tip of the tongue can naturally extend out of the mouth or lick the upper gum. However, a few children have abnormal lingual frenulum, which may lead to the phenomenon that the lingual frenulum is too short (commonly known as tongue climbing).

The tongue cannot extend forward normally and freely, and the part of the tongue extending out of the mouth is not as long as that of a normal child. Moreover, when the tongue stretches forward, the tip of the tongue is depressed due to the pull of the lingual tendon, and the tip of the tongue is W-shaped (the tip of the tongue is V-shaped when the tongue of a normal person extends outward), which may also affect breastfeeding or rub the lower incisors, causing ulcers. When a child opens his mouth, the tip of his tongue should not be tilted upward, licking his gums or reaching over his upper lip. When he is older, it will affect his normal pronunciation. It also has a great influence on chewing function. People with a short tongue band will chew slowly when eating because of the small space for tongue movement and difficulty in chewing.

Gingival trill is the most common trill, including Russian, Spanish, Armenian, Polish, Italian, Swedish, German (some users), Arabic, Norwegian, Icelandic, Finnish, Malay, Mongolian, Turkish, Manchu, Oroqen, Xibe, Thai, Uygur and Shao. There is no vibrato in most dialects of Chinese, but there are gingival vibrato in some dialects of Xuanwu dialect, parts of central and northern Hubei, Central Plains Mandarin area and Southwest Mandarin area (namely Dangyang, Jiangling, Zhongxiang and Jingshan areas) and northern Shennongjia.

Two kinds of vibrato in Spanish are called multi-tap vibrato and single-click vibrato. When you click on the vibrato pronunciation, the tip of the tongue bends upward, and when the air passes, the tip of the tongue quickly contacts the gums and then moves away; When trilling, the tip of the tongue is impacted by the airflow, constantly hitting the gums, resulting in multiple tremors.

Czech has two gingival trills. One of them will lift his tongue when he pronounces, so that when he trembles, he can hear a fricative sound, which sounds like [r] and [? ], generally described as [r? ]。 In ancient Greek, there was a vibrato that cleared the gums.