They have been in a relationship of mutual love for a long time.

This transmitter can send signals far away.

The cleaning woman cleans my office every day.

I could see the beautiful sea from the porthole.

He solved the problem with creative thinking.

He is interested in the Song pronunciation.

The doctor told him that he might have been infected with syphilis.

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.