Reducing greenhouse gas emissions is important for environmental protection.

Learning homonyms in Japanese is difficult.

He has a gentle and sincere personality, and is trusted by everyone.

The treble clef is often used in musical scores.

He is good at reading the treble clef.

He is deeply interested in Onmyodo, and incorporates its philosophy into his daily life.

Homophonic words are difficult, aren't they?

This noise is really annoying.

This new jet can fly at supersonic speeds.

He often gets lost because he has a bad sense of direction.