A glottal stop, or 'せいもんはれつおん' in Japanese, represents a sound like the 'uh-oh' in English.

This story is very strange, it's hard to understand.

There is a wonderful exhibition at the museum.

The Fibonacci sequence appears in many phenomena in nature.

This cell divides to create new cells.

His brother was diagnosed with schizophrenia a long time ago.

Solving problems of arithmetic sequence is difficult.

Understanding geometric sequences is important for understanding mathematics.

I believe that virtue is the highest virtue of mankind.

He proclaimed peace loudly.