When rhyming with a, o, ê, e, u (including the o in ao and eao), their pronunciation does not change too much, and the curling of the tongue does not conflict much with their own pronunciation, so it is sufficient to bring in the curling color directly when paediatricizing them. In this case, the tongue position of e is moved back a little bit, and the tongue position of a is raised a little bit. For example:

?a→ar: where nǎr 手把儿shǒubàr

?ia→iar: 叶芽儿yièyár 钱夹儿qiánjiár

Rhyming vowels with i and ü as the main vowels are paediatricized, because the opening of i and ü is small, and the tongue height is in front of the i and ü is a rhyming belly which can not be discarded, so there is a conflict with curling action. Therefore, there is a conflict with the rolling action. The way to deal with this is to first add a lingual, central, middle and middle rounded lip vowel, and then roll the tongue on this basis. For example:

?i→ier: 锅底儿guōdǐr 柳丝儿liǔsīr鞎儿wányìr

?ü→üer:ih 小曲儿xiǎoqǔr 毛驴儿máolǘr 毛驴儿máolǘr 有趣儿yǒuqǔr

The I vowel is used to childify the I vowel, but because of the conflict between the I vowel and the curling action, the I vowel is lost in childification. is lost, and the tongue is rolled on top of the main vowel. In the case of major vowels, the tongue position is shifted back towards the center and the middle due to the influence of the tongue roll. For example:

?ai→ar 大牌儿dàpáir 窗台儿chuāngtáir

?ei→er：同辈儿tóngbèir 宝贝儿bǎobèir

childrenization of the rhyming vowel with an ending phoneme of n, the rhyming end of the child's n is lost because of the obstruction to the tongue-rolling action of the n, and the tongue rolls up on top of the major vowels. Tongue roll. The original tongue position in the front of the main vowel, pediatricization of its sound after the tongue position to the central, middle direction backward, the main vowel impedes the curling of the tongue of the i, ü, to add a tongue surface, central, middle, not rounded lip vowels, and then curling the tongue on the basis of it. For example:

?an→ar:顶班儿dǐngbānr 传单儿chuándānr

?en→er:亏本儿kuīběnr 命极儿mìnggēnr

Rhymes that end in the front of the tongue vowel-I or the back of the tongue vowel-I are paediatricized. When dealing with them, because the opening of their pronunciation is small, and the tip of the tongue is already close to the back of the teeth or the front hard palate, which has prevented the tongue-rolling action, so when paediatricizing them, they should be changed into lingual surface, central, middle, and unrounded-lipped vowels, and then tongue-rolling should be carried out on this basis. For example:

? -i→er: 找刺儿 zhǎocìr 柳丝儿 liǔsīr

? -i→er: 樹枝儿 shùzhīr 找事儿 zhǎoshìr

. When the rhyming vowel with nag is paediatricized, the nag is pronounced at the back (which doesn't prevent tongue rolling), but since nag is nasal, there is no airflow in the mouth when it is pronounced, so it can't form a rolled tongue when it is rolled. Therefore, the nag sound should be completely lost when paediatric treatment is done, and then the tongue roll should be done on the basis of the main vowel. If the main vowel prevents the tongue roll, add a nasalized lingual, central, mid, or unrounded lip vowel, and then roll the tongue on top of it. For example:

?ang→?r: 茶缸儿 chágāngr 药方儿 yàofāngr

?iang

?i?r:小羊儿xiǎoyángr 菜秧儿 càiyāngr

So there is a free space without the use of paedalization.