He was observing the distant birds using binoculars.

Soroku is my best friend.

He is good at playing Beethoven's variations.

This transporter is designed to carry luggage efficiently.

Every day, I go jogging.

He was concealing that information.

In this forest, various organisms live by building a relationship of mutualism.

The destruction of the ozone layer has a significant impact on the Earth's climate.

She had her ovaries checked by a doctor due to a problem.

She is researching about medieval chastity belts.