Yabla video uses of

比如 bǐrú
shuō
吃饭 chīfàn
shì
ci fan ci fan
dōu
shì
没有 méiyǒu
juǎn
shé
de
For example, "chi fan" [to eat] is pronunced "ci fan." No retroflex.
就是 jiùshì
没有 méiyǒu
这个 zhège
juǎn
shé
yīn
There's no retroflex [a sound made with the tongue rolled back].
包括 bāokuò
shé
tāi
后面 hòumian
de
jiù
比较 bǐjiào
duō
一点 yīdiǎn
including the back of the tongue where the taste is stronger.
duì
zài
shé
tāi
de
两侧 liǎngcè
Yes, on the tongue coating at both sides