The middle pharyngeal constrictor is an important muscle that helps with swallowing.

He was working on that project round the clock.

We enjoy picnicking in this park year-round.

He is working round the clock.

He participated in many intercultural activities to overcome his xenophobia.

His business is growing with unstoppable force and vigor.

I am interested in Japanese language education.

She is conducting research on the world's oldest profession.

I have been to Reykjavík.

He took out a book from the bookshelf at the back of the room.