Carbon monoxide is a colorless, odorless gas, and it is dangerous to inhale.

This candy contains sorbitol.

The nitrogen cycle is very important for maintaining ecosystems on Earth.

My grandmother is suffering from osteoporosis.

This rodenticide is very effective.

Children are playing on the seesaw in the park.

My grandparents are healthy and living a long life.

My great-great-grandfather was engaged in agriculture.

She is a mezzo-soprano singer.

Pegasus, which appears in Greek mythology, is said to be a horse with beautiful wings.