In geology, the study of inversion tectonics plays an important role.

He is suffering from a disease of the macula.

He deeply reflected on his actions.

He was reflecting on his actions.

'Hot' and 'cold' are antonyms.

What is the antonym of 'hot'?

He is a believer in pantheism, considering all natural phenomena as part of God.

Using the handakuten, we derive the kana for a mora onsetted with.

Looking at the clouds floating in the sky, he began to dream.

His skills are really not fragmentary.