This job is a little more difficult than I thought.

His back was very broad, giving a sense of strength.

His Japanese ability is improving gradually.

Listening to music is really enjoyable.

This mutetrahedron plays a very important role in the world of mathematics.

He is fighting against illness.

I spilled the powder in the kitchen.

He is good at playing the guqin.

The National Research and Development Agency plays a crucial role in advancing science and technology.

Tsutomu vowed eternal love.