This hot spring has a high sulfur content.

This software corresponds to the new system.

I was really surprised by his cruelly brusque treatment.

This area has a strong smell of sulfur.

This factory is emitting a large amount of sulfur dioxide.

He stayed in Europe for a year for business.

He visited many museums while staying in Europe.

They (referring to women or girls) are my best friends.

She gave birth to a baby by Caesarean section.

I appreciate his prompt correspondence.