The effect of this medicine is amazing.

He has a bright and wonderful character.

This house is old, but you can feel its character.

The Mariana Trench is the deepest part of the earth.

Biotechnology plays a very important role in the medical field.

This road is a dead end.

Coelenterates are said to be the first animals with a true body cavity.

Please teach me how to find the greatest common divisor.

He was researching old records at the public records office.

I checked the train schedule by looking at the electronic noticeboard at the station.