Pronouncing the palatal sounds in Japanese is difficult.

He underwent an examination of the hard palate.

This problem is very difficult.

His English pronunciation is very natural.

He is practicing the pronunciation of Japanese.

He is studying Japanese.

This rock is very solid.

This apple is very hard.

Palatalization is a part of phonetics, referring to the process where a certain sound approaches the palate.

He said his palate was hurting.