He repeatedly entered and exited the room without permission.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

Well then, I'm off.

I chant the Sanbutsuge every morning.

The four tones of Chinese, namely ping, shang, qu, and ru, I particularly find the rising tone (jōshō) difficult.

This language is characterized by implosives.

The spotted seal is a type of seal often seen in the Arctic region.

She was living a life just like a sheltered daughter.