He said he had no subjective symptoms.

Next week, we will participate in the idol's handshake event.

Without this shield in front of the squat toilet, it's hard to use the toilet.

He died in prison.

He died in prison.

My new comb is very easy to use.

Astronomers have reported the discovery of a new supernova.

The study of superconductivity is an important field in physics.

This research institute is exploring new applications for superconductivity.

His memory has reached a supernatural level.