Observing dark nebulae is difficult.

In this chemical experiment, we will examine the properties of benzoic acid.

He decided to challenge the exploration of the Dark Continent.

I have been to Antwerp.

The Japanese Society for Rights of Authors, Composers and Publishers is an organization that protects the copyrights of musicians.

Before starting a new business, he said, 'Nothing ventured, nothing gained.'

He is looking for a new job at the public employment security office.

He tried to work hard and study at the same time, and in the end, he experienced the lesson of 'He who chases two hares catches neither.'

She was always supported behind him, hidden from view.

I suggested a new project.