My mother, I do not know how many times and roof of mouth, let mother hurt many times, always let my mother alone tears secretly, in short I was not a good child.

自我懂事以来，我不知和母亲顶了多少次嘴，让母亲伤了多少次心，总让母亲一个人偷偷的流泪，总之那时的我不算一个好孩子。

youdao

Her tongue clove to the roof of her mouth.

她的舌头紧紧地贴着上腭。

《牛津词典》

She clicked her tongue against the roof of her mouth.

她用舌头抵着上腭发出咔哒声。

《柯林斯英汉双解大词典》

Chomping into one of these piping hot dumplings will inevitably have you scalding the roof of your mouth, but it is all part of the experience.

BBC: Japan��s spirited third city

My 13 yr old golden, Lacie, was diagnosed with a fast growing fibrosarcoma tumor in her mouth that was so advanced it had already grown into her nasal cavity and was an extremely large mass located in the roof of her mouth.

FORBES: When A Pet Has Cancer Part II