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.

This old radio uses a cold-cathode tube.

The launch of intercontinental ballistic missiles has become an international issue.

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.