The military officer attached to the embassy plays a crucial role in gathering military information of that country.

Ceremonial family occasions are traditional family events in Japan.

This eigenfunction is one of the fundamental concepts of quantum mechanics.

The poster girl of that shop is very kind and always welcomes customers with a smile.

It is said that secondhand smoke has a negative impact on health.

Topology is a branch of mathematics that abstracts and generalizes the concept of space.

He was infected with hepatitis E.

He is receiving treatment for hepatitis C.

Hepatitis D is a viral disease that is transmitted through blood.

I repaired the broken vase using instant glue.