This is a fundamental problem.

He sealed the letter and posted it in the mailbox.

He strongly criticized the idea of fundamentalism.

He loves Ppongjjak music.

We decided to take on the sponsorship of this event.

It is important to understand the basis of this problem.

If you use this coupon, you will get a 10% discount.

We should always remember the power of Kannon in difficult times.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

I have been to Berwick-upon-Tweed.